chore(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v5...v6)

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

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

.github/workflows/metrics.yml

@@ -8,7 +8,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6

README.md

@@ -68,13 +68,13 @@
 
 
 <pre>
-Lang     hh:mm   
-Python   4:37   ██████----------------------------------   17%
-C++      4:12   ██████----------------------------------   15%
-YAML     3:42   █████-----------------------------------   13%
-PHP      3:10   ████------------------------------------   11%
-Bash     2:18   ███-------------------------------------    8%
-JSX      2:05   ███-------------------------------------    7%
+Lang       hh:mm   
+Python     15:24   █████████████---------------------------   33%
+C++        12:28   ██████████------------------------------   27%
+PHP         4:10   ███-------------------------------------    9%
+YAML        4:06   ███-------------------------------------    9%
+Markdown    2:19   ██--------------------------------------    5%
+Bash        1:33   █---------------------------------------    3%
 </pre>
 
 
@@ -89,5 +89,5 @@ JSX      2:05   ███-------------------------------------    7%
 
 <hr>
 
-<p align="center" style="text-align:center;">Last update: Sunday,  7 December 17:27 CET</p>
+<p align="center" style="text-align:center;">Last update: Monday, 24 November 05:36 CET</p>
 <p align="center" style="text-align:center;"><a href="https://github.com/marvinscham/marvinscham/actions/workflows/metrics.yml"><img src="https://github.com/marvinscham/marvinscham/actions/workflows/metrics.yml/badge.svg" alt="Update README" style="display:inline-block;"></a> <img alt="made with ♥" style="display:inline-block;" src="https://img.shields.io/badge/made_with-%E2%99%A5-663399?style=flat&labelColor=%23343B41"></p>