fix: install the default registries for version > 1.8 (#55)

Bumps [julia-actions/setup-julia](https://github.com/julia-actions/setup-julia) from 1 to 2.
- [Release notes](https://github.com/julia-actions/setup-julia/releases)
- [Commits](https://github.com/julia-actions/setup-julia/compare/v1...v2)

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

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

.github/workflows/backup.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Configure cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ${{ env.GITHUB_WORKSPACE }}

.github/workflows/ci.yml

@@ -53,7 +53,7 @@ jobs:
         with:
           path: ./.github/actions/julia-buildpkg
 
-      - uses: julia-actions/setup-julia@v1
+      - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}

action.yml

@@ -33,7 +33,7 @@ runs:
     shell: bash
   - run: |
       if "${{ inputs.ignore-no-cache }}" == "false" && !isdir(DEPOT_PATH[1])
-          println("::notice title=[julia-buildpkg] Caching of the julia depot was not detected ::Consider using `julia-actions/cache` to speed up runs https://github.com/julia-actions/cache. To ignore, set input `ignore-no-cache: true` ")
+          println("::notice title=[julia-buildpkg] Caching of the julia depot was not detected ::Consider using `julia-actions/cache` to speed up runs https://github.com/julia-actions/cache To ignore, set input `ignore-no-cache: true` ")
       end
       import Pkg
 
@@ -46,7 +46,12 @@ runs:
 
 
       if VERSION >= v"1.5-"
-          Pkg.Registry.add("General")
+          if VERSION >= v"1.8-"
+              # Install the default registries
+              Pkg.Registry.add()
+          else
+              Pkg.Registry.add("General")
+          end
 
           # If provided add local registries
           if !isempty("${{ inputs.localregistry }}")