fix: correct quoting in yamls of migrated libraries

Author: diegomarquezp

java-datastore/.OwlBot-hermetic.yaml

@@ -15,7 +15,7 @@
 deep-remove-regex:
 - /java-datastore/proto-google-.*/src
 deep-preserve-regex:
-- "/java-datastore/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- /java-datastore/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java
 - /java-datastore/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java
 deep-copy-regex:
 - source: /google/datastore/(v.*)/.*-java/proto-google-.*/src

java-logging/.OwlBot-hermetic.yaml

@@ -17,7 +17,7 @@ deep-remove-regex:
 - /java-logging/proto-google-.*/src
 - /java-logging/google-.*/src/v.*
 deep-preserve-regex:
-- "/java-logging/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- /java-logging/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java
 - /java-logging/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java
 deep-copy-regex:
 - source: /google/logging/(v.*)/.*-java/proto-google-.*/src

java-spanner/.OwlBot-hermetic.yaml

@@ -18,7 +18,7 @@ deep-remove-regex:
 - /java-spanner/google-cloud-spanner/src/main/java/com/google/cloud/spanner/v1
 - /java-spanner/google-cloud-spanner/src/main/java/com/google/cloud/spanner/admin
 deep-preserve-regex:
-- "/java-spanner/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- /java-spanner/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java
 - /java-spanner/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java
 - /java-spanner/proto-google-cloud-spanner-admin-database-v1/src/main/java/com/google/spanner/admin/database/v1/CryptoKeyName.java
 - /java-spanner/proto-google-cloud-spanner-admin-database-v1/src/main/java/com/google/spanner/admin/database/v1/CryptoKeyVersionName.java

java-storage/.OwlBot-hermetic.yaml

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 deep-preserve-regex:
-- "/java-storage/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java"
+- /java-storage/google-.*/src/main/java/com/google/cloud/.*/v.*/stub/Version.java
 - /java-storage/google-.*/src/test/java/com/google/storage/control/v2/ITFoldersTest.java
 deep-remove-regex:
 - /java-storage/grpc-google-.*/src