Update Pre-Release Iteration and Resource Management Milestone to 10.0 Preview4 (#13157)

## Proposed changes

- Update Pre-Release Iteration and Resource Management Milestone to 10.0
Preview4

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Author: LeafShi1

.github/policies/resourceManagement.yml

@@ -194,7 +194,7 @@ configuration:
               isRegex: False
       then:
       - addMilestone:
-          milestone: 10.0 Preview3
+          milestone: 10.0 Preview4
       description: Apply milestone to PRs on the main branch
       triggerOnOwnActions: true
     - if:

eng/Versions.props

@@ -6,7 +6,7 @@
     <PatchVersion>0</PatchVersion>
     <!-- version in our package name #.#.#-below.#####.## -->
     <PreReleaseVersionLabel>preview</PreReleaseVersionLabel>
-    <PreReleaseVersionIteration>3</PreReleaseVersionIteration>
+    <PreReleaseVersionIteration>4</PreReleaseVersionIteration>
     <VersionPrefix>$(MajorVersion).$(MinorVersion).$(PatchVersion)</VersionPrefix>
     <StabilizePackageVersion Condition="'$(StabilizePackageVersion)' == ''">false</StabilizePackageVersion>
     <DotNetFinalVersionKind Condition="'$(StabilizePackageVersion)' == 'true'">release</DotNetFinalVersionKind>