ci: drop Node 16 (EOL)

.github/workflow-templates/test-dapp.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/after-merge.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x', '18.x']
+        node-version: ['18.x', '20.x']
     steps:
       - uses: actions/checkout@v3
         with:

.github/workflows/integration.yml

@@ -61,7 +61,7 @@ jobs:
       # Prerequisites
       - uses: ./.github/actions/restore-node
         with:
-          node-version: 16.x
+          node-version: 18.x
           keep-endo: 'true'
 
       # Select a branch on dapp to test against by adding text to the body of the

.github/workflows/test-all-packages.yml

@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x', '18.x']
+        node-version: ['18.x', '20.x']
     steps:
       - uses: actions/checkout@v3
         with:
@@ -64,7 +64,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/restore-node
         with:
-          node-version: '18.x'
+          node-version: '20.x'
 
       # first job also does repo-level linting
       - name: lint repo format
@@ -84,7 +84,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/restore-node
         with:
-          node-version: '18.x'
+          node-version: '20.x'
 
       - name: yarn lint rest
         run: ./scripts/lint-with-types.sh rest
@@ -98,7 +98,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -189,7 +189,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -306,7 +306,7 @@ jobs:
     strategy:
       matrix:
         # test:xs is noop in solo/package.json
-        engine: ['16.x', '18.x']
+        engine: ['18.x', '20.x']
     steps:
       - name: set vars
         id: vars
@@ -347,7 +347,7 @@ jobs:
     strategy:
       matrix:
         # test:xs is noop in cosmic-swingset/package.json
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -391,7 +391,7 @@ jobs:
     strategy:
       matrix:
         # test:xs is noop in inter-protocol/package.json
-        engine: ['16.x', '18.x']
+        engine: ['18.x', '20.x']
     steps:
       - name: set vars
         id: vars
@@ -431,7 +431,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -472,7 +472,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -514,7 +514,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -566,7 +566,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -607,7 +607,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -649,7 +649,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars
@@ -691,7 +691,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        engine: ['16.x', '18.x', 'xs']
+        engine: ['18.x', '20.x', 'xs']
     steps:
       - name: set vars
         id: vars

.github/workflows/test-dapp-card-store.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-dapp-fungible-faucet.yml.DISABLED

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-dapp-otc.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-dapp-pegasus.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-dapp-simple-exchange.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-dapp-treasury.yml.DISABLED

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3

.github/workflows/test-documentation.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['16.x']
+        node-version: ['18.x']
 
     steps:
       - uses: actions/checkout@v3