Bump jungwinter/split from 1 to 2

Bumps [jungwinter/split](https://github.com/jungwinter/split) from 1 to 2.
- [Release notes](https://github.com/jungwinter/split/releases)
- [Commits](winterjung/split@v1...v2)

---
updated-dependencies:
- dependency-name: jungwinter/split
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/regular-release.yaml

@@ -12,12 +12,12 @@ jobs:
     outputs:
       version: ${{ steps.split-version.outputs._1 }}
     steps:
-      - uses: jungwinter/split@v1
+      - uses: jungwinter/split@v2
         id: split
         with:
           msg: ${{ github.ref }}
           seperator: '/'
-      - uses: jungwinter/split@v1
+      - uses: jungwinter/split@v2
         id: split-version
         with:
           msg: ${{ steps.split.outputs._2 }}