Extract docker image building during CI to its own workflow

.github/workflows/publish-docker-image.yml

@@ -0,0 +1,35 @@
+name: Build and publish docker image
+
+on:
+  push:
+    branches:
+      - develop
+    paths-ignore:
+      - 'LICENSE'
+      - './.*'
+      - './*.md'
+      - './*.xml'
+      - './*.yml*'
+      - './*.json5'
+      - './*.neon'
+    tags:
+      - 'v*'
+
+jobs:
+  build-openswoole:
+    uses: shlinkio/github-actions/.github/workflows/docker-build-and-publish.yml@main
+    secrets: inherit
+    with:
+      image-name: shlinkio/shlink
+      version-arg-name: SHLINK_VERSION
+
+  build-roadrunner:
+    uses: shlinkio/github-actions/.github/workflows/docker-build-and-publish.yml@main
+    secrets: inherit
+    with:
+      image-name: shlinkio/shlink
+      version-arg-name: SHLINK_VERSION
+      platforms: 'linux/arm64/v8,linux/amd64'
+      tags-suffix: roadrunner
+      extra-build-args: |
+        SHLINK_RUNTIME=rr