Bump actions/setup-dotnet from 1 to 3

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 1 to 3.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@v1...v3)

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

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

Author: dependabot[bot]

.github/workflows/dotnet-core.yml

@@ -18,7 +18,7 @@ jobs:
           repository: HicServices/RDMP
           ref: develop
           path: RDMP
-      - uses: actions/setup-dotnet@v1
+      - uses: actions/setup-dotnet@v3
         with:
           dotnet-version: 7.0.x
       - name: Get version