Use GITHUB_ENV to pass secrets into docker build.

.github/actions/docker-build-artifacts/action.yml

@@ -33,15 +33,34 @@ inputs:
 runs:
   using: "composite"
   steps:
-
     - name: Set up QEMU for Docker
       uses: docker/setup-qemu-action@v3
 
+    - name: Set up Python
+      uses: actions/setup-python@v5
+
+    - name: Append REPO_PASSWORD and DEPLOYMENT_TOKEN to GITHUB_ENV
+      env:
+        REPO_PASSWORD: ${{ secrets.REPO_PASSWORD }}
+        DEPLOYMENT_TOKEN: ${{ secrets.DEPLOYMENT_TOKEN }}
+      shell: python
+      run: |
+        import os
+
+        env_vars = {
+            'REPO_PASSWORD': os.getenv('REPO_PASSWORD'),
+            'DEPLOYMENT_TOKEN': os.getenv('DEPLOYMENT_TOKEN')
+        }
+
+        with open(os.getenv('GITHUB_ENV'), 'at') as github_env:
+            for key, value in env_vars.items():
+                github_env.write(f"{key}={value}\n")
+
     - name: Build Docker image
       shell: bash
       working-directory: ${{ inputs.WORKING_DIRECTORY }}
       run: |
-        env REPO_PASSWORD='${{ env.REPO_PASSWORD }}' DEPLOYMENT_TOKEN='${{ env.DEPLOYMENT_TOKEN }}' docker build \
+        docker build \
           --build-arg BUILD_NUMBER="${GITHUB_RUN_ID}" \
           --build-arg GIT_SHA="$(echo ${GITHUB_SHA} | cut -c1-10)" \
           --build-arg MAINTAINER="${{ inputs.MAINTAINER }}" \