Bump @actions/exec from 2.0.0 to 3.0.0

Bumps [@actions/exec](https://github.com/actions/toolkit/tree/HEAD/packages/exec) from 2.0.0 to 3.0.0.
- [Changelog](https://github.com/actions/toolkit/blob/main/packages/exec/RELEASES.md)
- [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/exec)

---
updated-dependencies:
- dependency-name: "@actions/exec"
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -29,7 +29,7 @@
   "homepage": "https://github.com/sersoft-gmbh/swift-version-action#readme",
   "dependencies": {
     "@actions/core": "^2.0.3",
-    "@actions/exec": "^2.0.0"
+    "@actions/exec": "^3.0.0"
   },
   "devDependencies": {
     "@tsconfig/node24": "^24.0.4",