Bump actions/setup-python from 5 to 6

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci-cogent3-dev.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: "actions/setup-python@v5"
+      - uses: "actions/setup-python@v6"
         with:
             python-version: "3.12"
 

.github/workflows/linters.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.12'
       - name: Install dependencies

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: "actions/setup-python@v5"
+      - uses: "actions/setup-python@v6"
         with:
             python-version: "${{ matrix.python-version }}"
 
@@ -42,7 +42,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.12'
 

.github/workflows/testing_develop.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: "actions/setup-python@v5"
+      - uses: "actions/setup-python@v6"
         with:
             python-version: "${{ matrix.python-version }}"