Revert "fix(deps): update dependency com.google.api.grpc:grpc-google-cloud-speech-v1beta1 to v0.89.5 (googleapis#8322)"

This reverts commit 6cf153e.

Author: suztomo

java-speech/google-cloud-speech-bom/pom.xml

@@ -64,7 +64,7 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-speech-v1beta1</artifactId>
-        <version>0.89.5</version><!-- {x-version-update:grpc-google-cloud-speech-v1beta1:current} -->
+        <version>0.89.5-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-speech-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>

java-speech/pom.xml

@@ -174,7 +174,7 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-speech-v1beta1</artifactId>
-        <version>0.89.5</version><!-- {x-version-update:grpc-google-cloud-speech-v1beta1:current} -->
+        <version>0.89.5-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-speech-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>