feat: Add screenshot test into CI and fix the health test for NZTM200…

…0Quad. BM-1087 (#422)

### Motivation

We need fix the health screenshot test to point to the health tileset.
Also, adding the screenshot into ci will be helpful for use to see any
screenshot test been updated.

### Modifications
- Fix the tileset for `health-2193-z3`.
- Add a github action to take screenshots. 
### Verification
See the PR workflow outputs.

.github/workflows/screenshot.yml

@@ -0,0 +1,52 @@
+name: screenshot
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  screenshot:
+    runs-on: ubuntu-latest
+
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - uses: linz/action-typescript@v3
+
+      - name: (Screenshot) Screenshot Pull Request Changes
+        run: |
+          ./bms.mjs --url https://basemaps.linz.govt.nz --output .artifacts/visual-snapshots
+
+      - name: Save snapshots
+        uses: getsentry/action-visual-snapshot@v2
+        with:
+          save-only: true
+          snapshot-path: .artifacts/visual-snapshots
+
+  visual-diff:
+    permissions:
+      id-token: write
+      contents: write
+      checks: write
+    needs: [screenshot]
+    name: validate screenshots
+    if: github.ref != 'refs/heads/master' && github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: AWS Configure
+        uses: aws-actions/[email protected]
+        with:
+          aws-region: ap-southeast-2
+          mask-aws-account-id: true
+          role-to-assume: ${{ secrets.AWS_ROLE_SCREENSHOT }}
+
+      - name: Diff snapshots
+        id: visual-snapshots-diff
+        uses: blacha/action-visual-snapshot@v2
+        with:
+          storage-prefix: 's3://linz-basemaps-screenshot'
+          storage-url: 'https://d25mfjh9syaxsr.cloudfront.net'

src/tiles.ts

@@ -32,7 +32,7 @@ export const DefaultTestTiles: TestTile[] = [
     name: 'health-2193-z3',
     tileMatrix: TileMatrixIdentifier.Nztm2000Quad,
     location: { lat: -41.8899962, lng: 174.0492437, z: 3 },
-    tileSet: 'aerial',
+    tileSet: 'health',
   },
   {
     name: 'aerial-3857-wellington-urban-z16',