Update GHA to s3krit/matrix-message-action@v0.0.3 + doc (#4030)

polkadot/.github/workflows/check-labels.yml

@@ -8,7 +8,8 @@ jobs:
   check-labels:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.ref }}

polkadot/.github/workflows/extrinsic-ordering-check-from-bin.yml

@@ -27,7 +27,8 @@ jobs:
       REF_URL: ${{github.event.inputs.reference_url}}
 
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
 
       - name: Fetch binary
         run: |

polkadot/.github/workflows/publish-docker-release.yml

@@ -9,7 +9,8 @@ jobs:
   main:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
       - name: Cache Docker layers

polkadot/.github/workflows/publish-draft-release.yml

@@ -26,7 +26,8 @@ jobs:
       matrix:
         runtime: ["polkadot", "kusama", "westend"]
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
       - name: Cache target dir
         uses: actions/cache@v2
         with:
@@ -64,7 +65,8 @@ jobs:
       release_url: ${{ steps.create-release.outputs.html_url }}
       asset_upload_url: ${{ steps.create-release.outputs.upload_url }}
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
           path: polkadot
@@ -100,8 +102,10 @@ jobs:
       matrix:
         runtime: ["polkadot", "kusama", "westend"]
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/download-artifact@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
+      - name: Download artifacts
+        uses: actions/download-artifact@v2
       - name: Set up Ruby 2.7
         uses: actions/setup-ruby@v1
         with:
@@ -128,7 +132,7 @@ jobs:
     needs: publish-draft-release
     steps:
       - name: Internal polkadot channel
-        uses: s3krit/matrix-message-action@v0.0.2
+        uses: s3krit/matrix-message-action@v0.0.3
         with:
           room_id: ${{ secrets.INTERNAL_POLKADOT_MATRIX_ROOM_ID }}
           access_token: ${{ secrets.MATRIX_ACCESS_TOKEN }}

polkadot/.github/workflows/release-bot.yml

@@ -15,7 +15,8 @@ jobs:
         - '!NTogofoetwjbTwOoPi:matrix.parity.io' # Internal release-notes channel
     runs-on: ubuntu-latest
     steps:
-      - uses: s3krit/matrix-message-action@v0.0.3
+      - name: Send Matrix message
+        uses: s3krit/matrix-message-action@v0.0.3
         with:
           room_id: ${{ matrix.channel }} # heh
           access_token: ${{ secrets.MATRIX_ACCESS_TOKEN }}

polkadot/.github/workflows/release-candidate.yml

@@ -7,7 +7,8 @@ jobs:
   tag_rc:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout sources
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - id: compute_tag
@@ -48,7 +49,8 @@ jobs:
           VERSION: ${{ steps.compute_tag.outputs.version }}
         with:
           filename: .github/ISSUE_TEMPLATE/release.md
-      - uses: s3krit/matrix-message-action@v0.0.2
+      - name: Send Matrix message
+        uses: s3krit/matrix-message-action@v0.0.3
         if: steps.create-issue.outputs.url != ''
         with:
           room_id: ${{ secrets.INTERNAL_POLKADOT_MATRIX_ROOM_ID }}