chore(main): release 2.13.0

Author: release-please[bot]

CHANGELOG.md

@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## [2.13.0](https://github.com/googleapis/python-api-core/compare/v2.12.0...v2.13.0) (2023-10-09)
+
+
+### Features
+
+* Add caching to routing header calculation ([#526](https://github.com/googleapis/python-api-core/issues/526)) ([6251eab](https://github.com/googleapis/python-api-core/commit/6251eab3fca5f7e509cb9b6e476ce1184094b711))
+
 ## [2.12.0](https://github.com/googleapis/python-api-core/compare/v2.11.1...v2.12.0) (2023-09-07)
 
 

google/api_core/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.12.0"
+__version__ = "2.13.0"