Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/documentation.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v4.2.0

.github/workflows/linter.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v4.2.0

.github/workflows/packager.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@master
+        uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v4.2.0

.github/workflows/releaser.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v4.2.0

.github/workflows/tester.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Get source code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python
         uses: actions/setup-python@v4.2.0
@@ -58,7 +58,7 @@ jobs:
 
     steps:
       - name: Get source code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Print QGIS version
         run: qgis --version