deps: update bigtable to 2.27.3 (#4167)

This includes a fix to a rare read hang

Change-Id: I410f305dda0cf5ec4d29270930ce25aa9a158cc1

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Fixes #<issue_number_goes_here> ☕️

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Author: igorbernstein2

pom.xml

@@ -56,8 +56,8 @@ limitations under the License.
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
     <!-- core dependency versions -->
-    <bigtable.version>2.27.2</bigtable.version>
-    <google-cloud-bigtable-emulator.version>0.164.2</google-cloud-bigtable-emulator.version>
+    <bigtable.version>2.27.3</bigtable.version>
+    <google-cloud-bigtable-emulator.version>0.164.3</google-cloud-bigtable-emulator.version>
     <bigtable-client-core.version>1.28.0</bigtable-client-core.version>
     <grpc-conscrypt.version>2.5.2</grpc-conscrypt.version>
     <!--  keeping at this version to align with hbase-->