⬆️ Update actions/checkout action to v6.0.3 (#862)

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

Author: renovate[bot]

.github/workflows/labels.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🚀 Run Label Syncer
         uses: micnncim/action-label-syncer@v1.3.0
         env:

.github/workflows/linting.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install prek
         run: pipx install prek
       - name: 🚀 Check for case conflicts
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -98,7 +98,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -113,7 +113,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -128,7 +128,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:

.github/workflows/release.yaml

@@ -19,7 +19,7 @@ jobs:
       id-token: write
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:

.github/workflows/tests.yaml

@@ -21,7 +21,7 @@ jobs:
         python: ["3.13", "3.14"]
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with:
@@ -42,7 +42,7 @@ jobs:
     needs: pytest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
         with:
           fetch-depth: 0
       - name: ⬇️ Download coverage data

.github/workflows/typing.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out code from GitHub
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: 🏗 Install uv
         uses: astral-sh/setup-uv@v8.1.0
         with: