fix: ignore repackaged files to fix clirr (#1300)

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Fixes #<issue_number_goes_here> ☕️

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Author: mutianf

google-cloud-bigtable-stats/clirr-ignored-differences.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- see http://www.mojohaus.org/clirr-maven-plugin/examples/ignored-differences.html -->
+<differences>
+    <difference>
+        <differenceType>7005</differenceType>
+        <className>com/google/cloud/bigtable/stats/StatsRecorderWrapper</className>
+        <method>*StatsRecorderWrapper*</method>
+        <to>*StatsRecorder*</to>
+    </difference>
+</differences>

google-cloud-bigtable-stats/pom.xml

@@ -101,6 +101,15 @@
                 <artifactId>maven-dependency-plugin</artifactId>
                 <version>3.3.0</version>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>clirr-maven-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>com/google/bigtable/veneer/repackaged/**</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>