Sync eng/common directory with azure-sdk-tools for PR 5742 (#25325)

Sync eng/common directory with azure-sdk-tools for PR
https://github.com/Azure/azure-sdk-tools/pull/5742 See [eng/common
workflow](https://github.com/Azure/azure-sdk-tools/blob/main/eng/common/README.md#workflow)

---------

Co-authored-by: scbedd <45376673+scbedd@users.noreply.github.com>
Co-authored-by: Wes Haggard <weshaggard@users.noreply.github.com>

eng/common/scripts/trust-proxy-certificate.ps1

@@ -3,4 +3,8 @@
 if ($TestProxyTrustCertFn -and (Test-Path "Function:$TestProxyTrustCertFn"))
 {
     &$TestProxyTrustCertFn
+}
+else 
+{
+    Write-Host "No implementation of Import-Dev-Cert-<language> provided in eng/scripts/Language-Settings.ps1."
 }