chore(github): tune stale and dependabot settings (#967)

* chore(github): tune stale and dependabot settings

* chore: run go tests whenever go.sum changes

* chore: run e2e tests on go.sum change

.github/dependabot.yml

@@ -5,7 +5,7 @@ updates:
     directory: "/"
     schedule:
       interval: weekly
-    open-pull-requests-limit: 10
+    open-pull-requests-limit: 5
   #  - package-ecosystem: npm
   #    directory: "/docs"
   #    schedule:

.github/workflows/e2e.yml

@@ -8,6 +8,7 @@ on:
     paths:
       - "**Dockerfile"
       - "**.go"
+      - "go.sum"
   push:
     branches:
       - master

.github/workflows/stale.yml

@@ -10,11 +10,12 @@ jobs:
       - uses: actions/stale@v9
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          stale-pr-message: "This pull request has been automatically marked as stale because it has not had
-    recent activity. It will be closed if no further activity occurs. Thank you
-    for your contributions."
+          stale-pr-message:
+            "This pull request has been automatically marked as stale because it has not had
+            recent activity. It will be closed if no further activity occurs. Thank you
+            for your contributions."
           days-before-stale: -1
           days-before-close: -1
-          days-before-pr-stale: 10
-          days-before-pr-close: 4
+          days-before-pr-stale: 31
+          days-before-pr-close: 16
           exempt-pr-labels: "S:wip"

.github/workflows/tests.yml

@@ -4,6 +4,7 @@ on:
   pull_request:
     paths:
       - "**.go"
+      - "go.sum"
   push:
     branches:
       - master