Add livetests to PPE (Azure#27315)

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there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


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### Checklists
- [ ] Added impacted package name to the issue description
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Author: sofiar-msft

sdk/communication/communication-phone-numbers/tests.yml

@@ -15,6 +15,10 @@ stages:
           SubscriptionConfigurations:
             - $(sub-config-communication-ppe-test-resources-common)
             - $(sub-config-communication-ppe-test-resources-js)
+          MatrixFilters:
+            - TestType=^(?!(browser|sample)).*  
+          MatrixReplace:
+            - SKIP_UPDATE_CAPABILITIES_LIVE_TESTS=false/true
         Int:
           SubscriptionConfigurations:
             - $(sub-config-communication-int-test-resources-common)
@@ -23,7 +27,7 @@ stages:
             - TestType=^(?!(browser|sample)).*
           MatrixReplace:
             - SKIP_UPDATE_CAPABILITIES_LIVE_TESTS=false/true
-      Clouds: Public,Int
+      Clouds: Public, PPE, Int
       MatrixConfigs:
         - Name: PhoneNumbers_js_livetest_matrix
           Path: sdk/communication/communication-phone-numbers/phone-numbers-livetest-matrix.json