exclude src/shared and lib; sync ci-config.json (Azure#19020)

Author: isra-fel

.azure-pipelines/SyncFromMainBranchConfig.json

@@ -1,5 +1,6 @@
 {
     "SyncPath": [
+        ".ci-config.json",
         "tools",
         ".azure-pipelines",
         "src/lib",

tools/PrepareAutorestModule.ps1

@@ -21,7 +21,7 @@ $ChangedFiles = Get-Content -Path "$PSScriptRoot\..\artifacts\FilesChanged.txt"
 
 $ALL_MODULE = "ALL_MODULE"
 
-$SKIP_MODULES = @()
+$SKIP_MODULES = @("lib", "shared") # lib and shared are special folders in src that should not trigger autorest. Do not remove them.
 
 #Region Detect which module should be processed
 $ModuleSet = New-Object System.Collections.Generic.HashSet[string]