chore: update owlbot lockfile (#1781)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 477248447

Source-Link: https://togithub.com/googleapis/googleapis/commit/4689c7380444972caf11fd1b96e7ec1f864b7dfb

Source-Link: https://togithub.com/googleapis/googleapis-gen/commit/c4059786a5cd805a0151d95b477fbc486bcbcedc
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYzQwNTk3ODZhNWNkODA1YTAxNTFkOTViNDc3ZmJjNDg2YmNiY2VkYyJ9

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest
-  digest: sha256:ddb19a6df6c1fa081bc99fb29658f306dd64668bc26f75d1353b28296f3a78e6
-# created: 2022-06-07T21:18:30.024751809Z
+  digest: sha256:b15a6f06cc06dcffa11e1bebdf1a74b6775a134aac24a0f86f51ddf728eb373e
+# created: 2022-08-26T22:34:55.905845397Z