ci(SPV-992): add sync labels workflow

.github/labels.yml

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+- color: "0075ca"
+  description: "Improvements or additions to documentation"
+  name: "documentation"
+- color: "b23128"
+  description: "Highest rated bug or issue, affects all"
+  name: "bug-P1"
+- color: "de3d32"
+  description: "Medium rated bug, affects a few"
+  name: "bug-P2"
+- color: "f44336"
+  description: "Lowest rated bug, affects nearly none or low-impact"
+  name: "bug-P3"
+- color: "0e8a16"
+  description: "Any new significant addition"
+  name: "feature"
+- color: "b60205"
+  description: "Urgent or important fix/patch"
+  name: "hot-fix"
+- color: "cccccc"
+  description: "Any idea, suggestion or opinion"
+  name: "idea"
+- color: "d4c5f9"
+  description: "Experimental - can break!"
+  name: "prototype"
+- color: "cc317c"
+  description: "Any question or concern"
+  name: "question"
+- color: "c2e0c6"
+  description: "Unit tests, mocking, integration testing"
+  name: "test"
+- color: "fbca04"
+  description: "Anything GUI related"
+  name: "ui-ux"
+- color: "006b75"
+  description: "Simple updates or version bumps"
+  name: "chore"
+- color: "006b75"
+  description: "Dependency updates"
+  name: "dependencies"
+- color: "006b75"
+  description: "General updates"
+  name: "update"
+- color: "FFA500"
+  description: "Any significant refactoring"
+  name: "refactor"
+- color: "FEF2C0"
+  description: "Used for automatic merging"
+  name: "automerge"
+- color: "FBCA04"
+  description: "Used for denoting a WIP, stops auto-merge"
+  name: "work-in-progress"
+- color: "c2e0c6"
+  description: "Old, unused, stale"
+  name: "stale"
+- color: "50e061"
+  description: "PR was tested by a team member"
+  name: "tested"

.github/workflows/sync-labels.yml

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+# Workflow: https://github.com/micnncim/action-label-syncer
+# Export your labels: https://github.com/micnncim/label-exporter
+name: sync-labels
+on:
+  push:
+    branches:
+      - master
+      - main
+    paths:
+      - .github/labels.yml
+jobs:
+  sync-labels:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: micnncim/action-label-syncer@v1.3.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          manifest: .github/labels.yml