Update CI checkout action

Also, remove the dependency downgrade step as this package has no
external dependencies to modify, and then make tweaks to syntax to
be consistent with other packages.

Author: jmert

.github/workflows/CI.yml

@@ -1,16 +1,13 @@
 name: CI
 on:
   push:
-    branches:
-      - 'master'
-    tags: '*'
+    branches: ['master']
+    tags: ['*']
     paths-ignore:
       - 'README.md'
-      - '.github/workflows/**'
   pull_request:
     paths-ignore:
       - 'README.md'
-      - '.github/workflows/**'
   workflow_dispatch:
 
 concurrency:
@@ -22,7 +19,7 @@ concurrency:
 jobs:
   test:
     if: "!contains(github.event.head_commit.message, 'skip ci')"
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
+    name: Tests
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -36,26 +33,25 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
       - uses: julia-actions/cache@v2
-      - uses: julia-actions/julia-downgrade-compat@v1
-        if: ${{ contains(fromJSON('["min"]'), matrix.version) }}
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: lcov.info
+
   docs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'