Upgrade from `netcoreapp2.2` to LTS (or STS) version

[github-actions]

The following project file(s) target a .NET version that's no longer supported.
This is an auto-generated issue, detailed and discussed in dotnet/docs#22271.

Target version	End of life	Release notes	Nearest LTS TFM version
netcoreapp2.2	December, 23 2019	netcoreapp2.2 release notes	net6.0

• non-lts/OldBits.fsproj

Consider upgrading projects to either the Standard Term Support (STS) or Long Term Support (LTS) versions.

If any of these projects listed in this issue are intentionally targeting an unsupported version,
you can optionally configure to ignore these results in future automation executions.
Create a (or update the) dotnet-versionsweeper.json file at the root of the repository and
add an ignore entry following the
globbing patterns detailed here.

{
    "ignore": [
        "**/path/to/example.csproj"
    ]
}