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: sha256:81c3ec554428c8ff6c92f0d58668b7ef52265d053a82284c97a326745e786949
-# created: 2024-03-27T17:59:25.436353226Z
+  digest: sha256:dc11e2119c854b57b7f7ed9962391decf002454700020a52b5d0d46c40b80a7e
+# created: 2024-04-15T22:37:28.944513098Z

README.md

@@ -52,7 +52,7 @@ 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:26.34.0')
+implementation platform('com.google.cloud:libraries-bom:26.37.0')
 
 implementation 'com.google.cloud:google-cloud-logging'
 ```