ci: update runners and actions (#3551)

* ci: update runners and actions

Update all GHA runners and actions to latest release.

Also add latest stable (0.11.5 atm) to test matrix.

* ci: add dependabot for GH actions

Author: clason

.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    commit-message:
+      prefix: "ci"

.github/workflows/ci.yml

@@ -1,6 +1,13 @@
 name: Tests
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+    branches:
+      - "master"
+  workflow_dispatch:
 
 jobs:
   unit_tests:
@@ -9,18 +16,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, macos-latest, windows-2022]
-        rev: [nightly, v0.9.5, v0.10.0]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        rev: [nightly, stable, v0.9.5, v0.10.4]
         include:
-          - os: ubuntu-22.04
+          - os: ubuntu-latest
             install-rg: sudo apt-get update && sudo apt-get install -y ripgrep
           - os: macos-latest
             install-rg: brew update && brew install ripgrep
-          - os: windows-2022
+          - os: windows-latest
             install-rg: choco install ripgrep
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: rhysd/action-setup-vim@v1
         with:

.github/workflows/docgen.yml

@@ -1,12 +1,10 @@
 name: Generate docs
 
 on:
-  push:
-    branches-ignore:
-      - master
-  pull_request_target:
+  pull_request:
     branches:
       - master
+  workflow_dispatch:
 
 jobs:
   build-sources:
@@ -16,10 +14,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-22.04
+          - os: ubuntu-latest
             url: https://github.com/neovim/neovim/releases/download/v0.9.5/nvim-linux64.tar.gz
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: date +%F > todays-date
       - name: Restore cache for today's nightly.
         uses: actions/cache@v4

.github/workflows/lint.yml

@@ -1,13 +1,20 @@
 name: Linting and style checking
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+    branches:
+      - "master"
+  workflow_dispatch:
 
 jobs:
   luacheck:
     name: Luacheck
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Prepare
         run: |
@@ -20,9 +27,9 @@ jobs:
 
   stylua:
     name: stylua
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: JohnnyMorganz/stylua-action@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -3,13 +3,15 @@ on:
   push:
     tags:
       - '*'
+  workflow_dispatch:
+
 jobs:
   luarocks-upload:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: LuaRocks Upload
-        uses: nvim-neorocks/luarocks-tag-release@v1.0.2
+        uses: lumen-oss/luarocks-tag-release@v7
         env:
           LUAROCKS_API_KEY: ${{ secrets.LUAROCKS_API_KEY }}
         with: