Update actions/checkout action to v7 (#27)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - run: |
           npm ci

.github/workflows/publish-release.yml

@@ -11,7 +11,7 @@ jobs:
     permissions: write-all
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ github.event.release.tag_name }}
           fetch-depth: 0 # fetch full history for Git tests

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Check if package.json version changed
         uses: EndBug/version-check@v3

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Test XC8 Installation
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Test XC16 Installation
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -67,7 +67,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Test XC32 Installation
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -95,7 +95,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Test Custom Installation Directory
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -140,7 +140,7 @@ jobs:
             version: '5.10'
             binary: 'xc32-gcc'
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6

.github/workflows/update-compiler-versions.yml

@@ -13,7 +13,7 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install uv
         uses: astral-sh/setup-uv@v8.2.0