Bump actions/cache from 4 to 5 in /.github/workflows

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
           dotnet-version: '10.0.x'
 
       - name: cache nuget packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.nuget/packages
           key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}
@@ -46,7 +46,7 @@ jobs:
           dotnet-version: '10.0.x'
 
       - name: cache nuget packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.nuget/packages
           key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
           dotnet-version: '10.0.x'
 
       - name: cache nuget packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.nuget/packages
           key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}
@@ -46,7 +46,7 @@ jobs:
           dotnet-version: '10.0.x'
 
       - name: cache nuget packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.nuget/packages
           key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}