feat: add libraries_bom_version in metadata (#1956)

* feat: add libraries_bom_version

* add unit tests

* remove isfile

* add tempdir

* restore

* add current dir

* restore template

* remove unit test

* restore templates
Source-Link: googleapis/synthtool@63cc541
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:dc11e2119c854b57b7f7ed9962391decf002454700020a52b5d0d46c40b80a7e

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
-  digest: sha256:033161f610016d155d58f96769ad5a821d203824684e8a13fc50be8c25a5f9cf
-# created: 2024-04-04T20:03:23.876897177Z
+  digest: sha256:dc11e2119c854b57b7f7ed9962391decf002454700020a52b5d0d46c40b80a7e
+# created: 2024-04-15T22:37:28.944513098Z

README.md

@@ -50,7 +50,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 If you are using Gradle 5.x or later, add this to your dependencies:
 
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:26.36.0')
+implementation platform('com.google.cloud:libraries-bom:26.37.0')
 
 implementation 'com.google.cloud:google-cloud-bigquerystorage'
 ```