build: update three actions to latest version (#1473)

Also, remove the symbolic references in the comments, since dependabot
doesn't update them.

Author: nedbat

.github/workflows/coverage.yml

@@ -210,8 +210,7 @@ jobs:
 
       - name: "Create badge"
         # https://gist.githubusercontent.com/nedbat/8c6980f77988a327348f9b02bbaf67f5
-        # uses: schneegans/[email protected]
-        uses: schneegans/dynamic-badges-action@9e75560bc15f4bddbf108466ba42d6922f1fc160
+        uses: schneegans/dynamic-badges-action@5d424ad4060f866e4d1dab8f8da0456e6b1c4f56
         with:
           auth: ${{ secrets.METACOV_GIST_SECRET }}
           gistID: 8c6980f77988a327348f9b02bbaf67f5

.github/workflows/kit.yml

@@ -136,8 +136,7 @@ jobs:
     steps:
       - name: "Setup QEMU"
         if: matrix.os == 'ubuntu'
-        # uses: docker/setup-qemu-action@v2
-        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8
+        uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18
         with:
           platforms: arm64
 

.github/workflows/testsuite.yml

@@ -102,7 +102,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Decide whether the needed jobs succeeded or failed
-        # uses: re-actors/[email protected]
-        uses: re-actors/alls-green@13b4244b312e8a314951e03958a2f91519a6a3c9
+        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe
         with:
           jobs: ${{ toJSON(needs) }}