Revert "Change generated dev tag to include timestamp (#21)"

This reverts commit 697aa78.

.github/workflows/ghcr.yml

@@ -20,10 +20,6 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
-
-      - name: Get timestamp
-        id: timestamp
-        run: echo "TIMESTAMP=$(date +%s)" >> $GITHUB_ENV
 
       - name: Log in to the Container registry
         uses: docker/login-action@v3
@@ -39,7 +35,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=sha,prefix=
-            type=raw,enable=${{ !startsWith(github.ref, 'refs/tags/') }},value=dev-${{ env.TIMESTAMP }}
+            type=raw,enable=${{ !startsWith(github.ref, 'refs/tags/') }},value=develop
             type=semver,pattern={{raw}}
 
       - name: Build and push Docker image
@@ -48,4 +44,4 @@ jobs:
           context: .
           push: true
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          labels: ${{ steps.meta.outputs.labels }}