Extract docker image building during CI to its own workflow

.github/workflows/ci-docker-image-build.yml

@@ -0,0 +1,14 @@
+name: Build docker image
+
+on:
+  pull_request:
+    paths:
+      - './Dockerfile'
+
+jobs:
+  build-docker-image:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - run: docker build -t shlink-docker-image:temp .

.github/workflows/ci.yml

@@ -1,12 +1,28 @@
 name: Continuous integration
 
 on:
-  pull_request: null
+  pull_request:
+    paths-ignore:
+      - 'LICENSE'
+      - './.*'
+      - './*.md'
+      - './*.xml'
+      - './*.yml*'
+      - './*.json5'
+      - './*.neon'
   push:
     branches:
       - main
       - develop
       - 2.x
+    paths-ignore:
+      - 'LICENSE'
+      - './.*'
+      - './*.md'
+      - './*.xml'
+      - './*.yml*'
+      - './*.json5'
+      - './*.neon'
 
 jobs:
   static-analysis:
@@ -157,19 +173,3 @@ jobs:
             coverage-db
             coverage-api
             coverage-cli
-
-  build-docker-image:
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 100
-      - uses: marceloprado/has-changed-path@v1
-        id: changed-dockerfile
-        with:
-          paths: ./Dockerfile
-      - if: ${{ steps.changed-dockerfile.outputs.changed == 'true' }}
-        run: docker build -t shlink-docker-image:temp .
-      - if: ${{ steps.changed-dockerfile.outputs.changed != 'true' }}
-        run: echo "Dockerfile didn't change. Skipped"

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

@@ -4,6 +4,14 @@ on:
   push:
     branches:
       - develop
+    paths-ignore:
+      - 'LICENSE'
+      - './.*'
+      - './*.md'
+      - './*.xml'
+      - './*.yml*'
+      - './*.json5'
+      - './*.neon'
     tags:
       - 'v*'
 

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2021 Alejandro Celaya
+Copyright (c) 2016-2023 Alejandro Celaya
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal