deps: Update dependency keyring to v24.3.0 (#297)

Author: renovate-bot

.kokoro/requirements.txt

@@ -326,9 +326,9 @@ Jinja2==3.1.2 \
  --hash=sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852 \
  --hash=sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61
  # via gcp-releasetool
-keyring==24.2.0 \
- --hash=sha256:4901caaf597bfd3bbd78c9a0c7c4c29fcd8310dab2cffefe749e916b6527acd6 \
- --hash=sha256:ca0746a19ec421219f4d713f848fa297a661a8a8c1504867e55bfb5e09091509
+keyring==24.3.0 \
+ --hash=sha256:4446d35d636e6a10b8bce7caa66913dd9eca5fd222ca03a3d42c38608ac30836 \
+ --hash=sha256:e730ecffd309658a08ee82535a3b5ec4b4c8669a9be11efb66249d8e0aeb9a25
  # via gcp-releasetool
 MarkupSafe==2.1.3 \
  --hash=sha256:05fb21170423db021895e1ea1e1f3ab3adb85d1c2333cbc2310f2a26bc77272e \