Use bash replace in container yaml

Author: LegNeato

.github/workflows/container_images.yml

@@ -79,6 +79,12 @@ jobs:
           outputs: type=image,name=${{ env.REGISTRY }}/${{ matrix.variance.image }},push-by-digest=true,name-canonical=true,push=${{ github.event_name != 'pull_request' }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+      - name: Set artifact name
+        if: github.event_name != 'pull_request'
+        run: |
+          ARTIFACT_NAME="${{ matrix.variance.image }}"
+          ARTIFACT_NAME="${ARTIFACT_NAME//\//-}"
+          echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> $GITHUB_ENV
       - name: Export digest
         if: github.event_name != 'pull_request'
         run: |
@@ -89,7 +95,7 @@ jobs:
         if: github.event_name != 'pull_request'
         uses: actions/upload-artifact@v4
         with:
-          name: digests-${{ replace(matrix.variance.image, '/', '-') }}-${{ matrix.platform.arch }}
+          name: digests-${{ env.ARTIFACT_NAME }}-${{ matrix.platform.arch }}
           path: /tmp/digests/*
           if-no-files-found: error
           retention-days: 1
@@ -117,11 +123,16 @@ jobs:
           - name: RockyLinux-9/CUDA-12.8.1
             image: "rust-gpu/rust-cuda-rockylinux9-cuda12"
     steps:
+      - name: Set artifact name
+        run: |
+          ARTIFACT_NAME="${{ matrix.variance.image }}"
+          ARTIFACT_NAME="${ARTIFACT_NAME//\//-}"
+          echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> $GITHUB_ENV
       - name: Download digests
         uses: actions/download-artifact@v4
         with:
           path: /tmp/digests
-          pattern: digests-${{ replace(matrix.variance.image, '/', '-') }}-*
+          pattern: digests-${{ env.ARTIFACT_NAME }}-*
           merge-multiple: true
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3