idk lets try this

.github/actions/make-version-string/Dockerfile

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+FROM mcr.microsoft.com/powershell
+WORKDIR /action
+
+RUN pwsh -c '$ProgressPreference = "SilentlyContinue"; Install-Module Axinom.DevOpsTooling -Scope AllUsers -AllowPrerelease -Force'
+
+COPY *.ps1 .
+
+ENTRYPOINT ["pwsh", "-c", "& /action/entrypoint.ps1"]

.github/actions/make-version-string/action.yml

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+name: 'Create the version string'
+description: 'Generates a version string of the form [branch-]1.2.3-NNNNNNNNNNN-CCCCCCC, where N is an incrementing value and C identifies the commit, with an optional branch prefix. Fields lengths are unspecified and may increase in future versions.'
+inputs:
+  assemblyInfoPath:
+    description: 'Path to a .NET style AssemblyInfo file containing the numeric version component.'
+    required: true
+outputs:
+  versionstring:
+    description: 'The generated version string'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

.github/actions/make-version-string/entrypoint.ps1

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+$ErrorActionPreference = "Stop"
+
+Import-Module Axinom.DevOpsTooling
+
+$path = Join-Path $env:GITHUB_WORKSPACE $env:INPUT_ASSEMBLYINFOPATH
+
+$version = Set-DotNetBuildAndVersionStrings -assemblyInfoPath $path -commitId $ENV:GITHUB_SHA
+Write-Host "::set-output name=versionstring::$version"