Revert "fix(deps): update dependency com.google.cloud:google-cloud-automl-parent to v2.3.7 (googleapis#8247)"

This reverts commit d07d495.

Author: suztomo

java-automl/google-cloud-automl/pom.xml

@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-automl-parent</artifactId>
-    <version>2.3.7</version><!-- {x-version-update:google-cloud-automl:current} -->
+    <version>2.3.7-SNAPSHOT</version><!-- {x-version-update:google-cloud-automl:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-automl</site.installationModule>

java-automl/grpc-google-cloud-automl-v1/pom.xml

@@ -10,7 +10,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-automl-parent</artifactId>
-    <version>2.3.7</version><!-- {x-version-update:google-cloud-automl:current} -->
+    <version>2.3.7-SNAPSHOT</version><!-- {x-version-update:google-cloud-automl:current} -->
   </parent>
   <dependencies>
     <dependency>

java-automl/grpc-google-cloud-automl-v1beta1/pom.xml

@@ -10,7 +10,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-automl-parent</artifactId>
-    <version>2.3.7</version><!-- {x-version-update:google-cloud-automl:current} -->
+    <version>2.3.7-SNAPSHOT</version><!-- {x-version-update:google-cloud-automl:current} -->
   </parent>
   <dependencies>
     <dependency>

java-automl/proto-google-cloud-automl-v1/pom.xml

@@ -10,7 +10,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-automl-parent</artifactId>
-    <version>2.3.7</version><!-- {x-version-update:google-cloud-automl:current} -->
+    <version>2.3.7-SNAPSHOT</version><!-- {x-version-update:google-cloud-automl:current} -->
   </parent>
   <dependencies>
     <dependency>

java-automl/proto-google-cloud-automl-v1beta1/pom.xml

@@ -10,7 +10,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-automl-parent</artifactId>
-    <version>2.3.7</version><!-- {x-version-update:google-cloud-automl:current} -->
+    <version>2.3.7-SNAPSHOT</version><!-- {x-version-update:google-cloud-automl:current} -->
   </parent>
   <dependencies>
     <dependency>