"Unable to resolve action" for any action

[kalleguld]

Every action in an .yml file gives an error Unable to resolve action "actions/checkout@v4", repository or version not found - even fundamental stuff like - uses: actions/checkout@v4

To Reproduce

• Make a file like this one (autogenerated by github.com):

name: .NET
on:
  push:
    branches: [ "main" ]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Setup .NET
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: 9.0.x
    - name: Restore dependencies
      run: dotnet restore
    - name: Build
      run: dotnet build --no-restore

• Open the Problems tab in VSCode.
• Lines 9 and 11 now give an error:

[{
	"resource": "/[repo_path]/.github/workflows/dotnet.yml",
	"owner": "_generated_diagnostic_collection_name_#7",
	"severity": 8,
	"message": "Unable to resolve action `actions/checkout@v4`, repository or version not found",
	"startLineNumber": 9,
	"startColumn": 13,
	"endLineNumber": 9,
	"endColumn": 32
}]

Expected behavior
Expected no false errors.

Screenshots

Extension Version
v0.27.0

Additional context
Add any other context about the problem here.