Unpin google-cloud-bigtable version (fixes #37637) (#38861)

Author: kellen

buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy

@@ -639,8 +639,6 @@ class BeamModulePlugin implements Plugin<Project> {
     def postgres_version = "42.6.2"
     // [bomupgrader] determined by: com.google.protobuf:protobuf-java, consistent with: google_cloud_platform_libraries_bom
     def protobuf_version = "4.33.2"
-    // TODO(https://github.com/apache/beam/issues/37637): Remove this once the Bom has been updated to at least reach this version
-    def bigtable_version = "2.73.1"
     def qpid_jms_client_version = "0.61.0"
     def quickcheck_version = "1.0"
     def sbe_tool_version = "1.25.1"
@@ -754,7 +752,7 @@ class BeamModulePlugin implements Plugin<Project> {
         google_auth_library_oauth2_http             : "com.google.auth:google-auth-library-oauth2-http", // google_cloud_platform_libraries_bom sets version
         google_cloud_bigquery                       : "com.google.cloud:google-cloud-bigquery", // google_cloud_platform_libraries_bom sets version
         google_cloud_bigquery_storage               : "com.google.cloud:google-cloud-bigquerystorage", // google_cloud_platform_libraries_bom sets version
-        google_cloud_bigtable                       : "com.google.cloud:google-cloud-bigtable:$bigtable_version", // google_cloud_platform_libraries_bom sets version
+        google_cloud_bigtable                       : "com.google.cloud:google-cloud-bigtable", // google_cloud_platform_libraries_bom sets version
         google_cloud_bigtable_client_core_config    : "com.google.cloud.bigtable:bigtable-client-core-config:1.28.0",
         google_cloud_bigtable_emulator              : "com.google.cloud:google-cloud-bigtable-emulator", // google_cloud_platform_libraries_bom sets version
         google_cloud_core                           : "com.google.cloud:google-cloud-core", // google_cloud_platform_libraries_bom sets version