Update test buf.gen.*.yaml files

Author: jchadwick-buf

src/test/resources/proto/buf.gen.imports.yaml

@@ -5,7 +5,7 @@ managed:
     - file_option: java_package_prefix
       value: com.example.imports
 plugins:
-  - remote: buf.build/protocolbuffers/java:v25.3
+  - remote: buf.build/protocolbuffers/java:v27.3
     out: build/generated/test-sources/bufgen
 inputs:
   - directory: src/test/resources/proto

src/test/resources/proto/buf.gen.noimports.yaml

@@ -8,7 +8,7 @@ managed:
     - file_option: java_package_prefix
       value: com.example.noimports
 plugins:
-  - remote: buf.build/protocolbuffers/java:v25.3
+  - remote: buf.build/protocolbuffers/java:v27.3
     out: build/generated/test-sources/bufgen
 inputs:
   - directory: src/main/resources