Bump super-linter/super-linter from 6 to 7 (#174)

* Bump super-linter/super-linter from 6 to 7

Bumps [super-linter/super-linter](https://github.com/super-linter/super-linter) from 6 to 7.
- [Release notes](https://github.com/super-linter/super-linter/releases)
- [Changelog](https://github.com/super-linter/super-linter/blob/main/CHANGELOG.md)
- [Commits](super-linter/super-linter@v6...v7)

---
updated-dependencies:
- dependency-name: super-linter/super-linter
  dependency-type: direct:production
  update-type: version-update:semver-major
...



* Update CONTRIBUTING.md

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Madelen Andersson <madelen.andersson@axis.com>

Author: 3 people

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
           fetch-depth: 0
 
       - name: Lint codebase
-        uses: super-linter/super-linter/slim@v6
+        uses: super-linter/super-linter/slim@v7
         env:
           VALIDATE_ALL_CODEBASE: true
           DEFAULT_BRANCH: main

CONTRIBUTING.md

@@ -185,7 +185,7 @@ docker run --rm \
   -e VALIDATE_MARKDOWN=true \
   -e VALIDATE_SHELL_SHFMT=true \
   -e VALIDATE_YAML=true \
-  ghcr.io/super-linter/super-linter:slim-v6
+  ghcr.io/super-linter/super-linter:slim-v7
 ```
 
 See [`.github/workflows/lint.yml`](.github/workflows/lint.yml) for the exact setup used by this project.
@@ -199,7 +199,7 @@ docker run --rm \
   -v $PWD:/tmp/lint \
   -w /tmp/lint \
   --entrypoint /bin/bash \
-  -it ghcr.io/super-linter/super-linter:slim-v6
+  -it ghcr.io/super-linter/super-linter:slim-v7
 ```
 
 Then from the container terminal, the following commands can lint the the code base for different