chore: ensure gettext-base is installed for cosign

Author: kmendell

.depot/workflows/build-next-images.yml

@@ -49,6 +49,9 @@ jobs:
           go-version-file: backend/go.mod
           cache-dependency-path: backend/go.sum
 
+      - name: Install envsubst
+        run: sudo apt-get update && sudo apt-get install -y gettext-base
+
       - name: Install cosign
         uses: sigstore/cosign-installer@v4.1.1
 

.github/workflows/build-next-images.yml

@@ -48,6 +48,9 @@ jobs:
           go-version-file: backend/go.mod
           cache-dependency-path: backend/go.sum
 
+      - name: Install envsubst
+        run: sudo apt-get update && sudo apt-get install -y gettext-base
+
       - name: Install cosign
         uses: sigstore/cosign-installer@v4.1.1
 

.github/workflows/release.yml

@@ -65,6 +65,9 @@ jobs:
             backend/go.sum
             cli/go.sum
 
+      - name: Install envsubst
+        run: sudo apt-get update && sudo apt-get install -y gettext-base
+
       - name: Install cosign
         uses: sigstore/cosign-installer@v4.1.1