[ci] update config

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"

.github/release.yml

@@ -0,0 +1,5 @@
+changelog:
+  exclude:
+    authors:
+      - dependabot
+      - pre-commit-ci

.github/workflows/ci.yml

@@ -4,29 +4,26 @@ on:
   push:
     branches:
       - main
-      - dev
       - 'releases/**'
     tags: '*'
   pull_request:
   release:
 
 concurrency:
-  # Skip intermediate builds: always.
-  # Cancel intermediate builds: only if it is a pull request build.
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+  cancel-in-progress: true
 
 jobs:
   docs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: julia-actions/setup-julia@latest
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
       - name: Cache artifacts
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with:
@@ -36,10 +33,10 @@ jobs:
             ${{ runner.os }}-test-${{ env.cache-name }}-
             ${{ runner.os }}-test-
             ${{ runner.os }}-
-      - uses: julia-actions/julia-buildpkg@latest
+      - uses: julia-actions/julia-buildpkg@v1
         env:
           PYTHON: 'Conda'
-      - uses: julia-actions/julia-docdeploy@latest
+      - uses: julia-actions/julia-docdeploy@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           # Needed due to https://github.com/JuliaDocs/Documenter.jl/issues/1177