We know that sometimes FTL fails to build on GHA, it's usually transient. Implement retry logic from the FTL repo

remove redundant environment variable definitions.
Signed-off-by: Adam Warner <[email protected]>

Author: PromoFaux

.github/workflows/ftl-build-publish.yml

@@ -90,14 +90,17 @@ jobs:
 
       - name: Build and push by digest
         id: build
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 #v6.18.0
+        uses: nick-fields/retry@ce71cc2ab81d554ebbe88c79ab5975992d79ba08 #v3.0.2
         with:
-          context: ftl-build
-          platforms: ${{ matrix.platform }}
-          target: build
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: |
-            type=image,name=${{ env.DOCKER_REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
+          max_attempts: 3
+          timeout_minutes: 60
+          command: |
+            docker buildx build \
+              --context ftl-build \
+              --platform ${{ matrix.platform }} \
+              --target build \
+              --label "${{ steps.meta.outputs.labels }}" \
+              --output "type=image,name=${{ env.DOCKER_REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true"
 
       - name: Export digests
         run: |

.github/workflows/ftl-build-test.yml

@@ -6,10 +6,6 @@ on:
 permissions:
   contents: read
 
-env:
-  DOCKER_REGISTRY_IMAGE: ${{ secrets.DOCKERHUB_NAMESPACE }}/ftl-build
-  GITHUB_REGISTRY_IMAGE: ghcr.io/${{ github.repository_owner }}/ftl-build
-
 jobs:
   build-and-test:
     runs-on: ${{ matrix.runner }}
@@ -42,9 +38,13 @@ jobs:
         uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 #v3.11.1
 
       - name: Build container and test-compile FTL
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 #v6.18.0
+        uses: nick-fields/retry@ce71cc2ab81d554ebbe88c79ab5975992d79ba08 #v3.0.2
         with:
-          context: ftl-build
-          platforms: ${{ matrix.platform }}
-          push: false
-          target: test
+          max_attempts: 3
+          timeout_minutes: 60
+          command: |
+            docker buildx build \
+              --platform ${{ matrix.platform }} \
+              --target test \
+              --output type=docker \
+              ftl-build