Setting the REACT_NATIVE_BOOST_PATH environment with build task

.ado/android-pr.yml

@@ -82,7 +82,7 @@ jobs:
       - task: CmdLine@2
         displayName: gradlew installArchives
         inputs:
-          script: ./gradlew installArchives -Pparam="excludeLibs"
+          script: REACT_NATIVE_BOOST_PATH=$(System.DefaultWorkingDirectory)/build_deps ./gradlew installArchives -Pparam="excludeLibs"
 
       - template: templates\prep-android-nuget.yml
 

.ado/publish.yml

@@ -154,7 +154,7 @@ jobs:
       - task: CmdLine@2
         displayName: gradlew installArchives
         inputs:
-          script: ./gradlew installArchives -Pparam="excludeLibs"
+          script: REACT_NATIVE_BOOST_PATH=$(System.DefaultWorkingDirectory)/build_deps ./gradlew installArchives -Pparam="excludeLibs"
 
       - template: templates\prep-android-nuget.yml