Add prow-github-action

Signed-off-by: Sivanantham Chinnaiyan <[email protected]>

.github/labels.yaml

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+# Labels for labeling issues and pull requests using GitHub prow action.
+kind:
+  - 'bug'
+  - 'discussion'
+  - 'feature'
+  - 'process'
+  - 'question'
+
+area:
+  - 'api'
+  - 'azure'
+  - 'docs'
+  - 'example'
+  - 'gcp'
+  - 'inference'
+  - 'infrastructure-feature'
+  - 'logging'
+  - 'operator'
+  - 'performance'
+  - 'testing'
+  - 'project-health'
+  - 'servingruntime'
+  - 'inferencegraph'
+  - 'storage'
+  - 'inferenceservice'
+  - 'control-plane'
+
+priority:
+  - 'p0'
+  - 'p1'
+  - 'p2'

.github/workflows/prow-github.yml

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+# Run specified actions or jobs for issue and PR comments
+
+name: "Prow github actions"
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  execute:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jpmcb/prow-github-actions@latest
+        with:
+          prow-commands: '/assign 
+            /unassign 
+            /approve 
+            /retitle 
+            /area 
+            /kind 
+            /priority 
+            /remove 
+            /lgtm 
+            /close 
+            /reopen 
+            /lock 
+            /milestone 
+            /hold 
+            /cc 
+            /uncc'
+          github-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/prow-pr-automerge.yml

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+# This Github workflow will check every hour for PRs with the lgtm label and will attempt to automatically merge them.
+# If the hold label is present, it will block automatic merging.
+
+name: "Merge on lgtm label"
+on:
+  schedule:
+  - cron: "0 * * * *" # every hour
+
+jobs:
+  execute:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jpmcb/prow-github-actions@v1
+        with:
+          jobs: 'lgtm'
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          merge-method: 'squash'

.github/workflows/prow-pr-remove-lgtm.yml

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+# This workflow will remove the lgtm label from a PR that gets updated.
+# This prevents any un-reviewed code from being automatically merged by the lgtm-merger mechanism.
+
+name: "Remove lgtm label"
+on: pull_request
+
+jobs:
+  execute:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jpmcb/[email protected]
+        with:
+          jobs: 'lgtm'
+          github-token: "${{ secrets.GITHUB_TOKEN }}"