fix: enable longpaths support for windows test (#1485) (#1946)

Source-Link: googleapis/synthtool@7336562
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:d4b80feffe1579818cdc39466152e9de95789a193408506cd4a1ffbe8804dc00

Author: gcf-owl-bot[bot]

.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:f8374176dc59291f05dd3fec927a9da2cda687a9ef4de32e77f699a2be12ab45
-# created: 2022-07-07T14:26:11.880812641Z
+  digest: sha256:d4b80feffe1579818cdc39466152e9de95789a193408506cd4a1ffbe8804dc00
+# created: 2022-07-13T13:53:17.676447481Z

README.md

@@ -49,7 +49,7 @@ If you are using Maven without 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:25.4.0')
+implementation platform('com.google.cloud:libraries-bom:26.0.0')
 
 implementation 'com.google.cloud:google-cloud-spanner'
 ```