Bump yamllint from 1.26.0 to 1.26.1 in /application

Bumps [yamllint](https://github.com/adrienverge/yamllint) from 1.26.0 to 1.26.1.
- [Release notes](https://github.com/adrienverge/yamllint/releases)
- [Changelog](https://github.com/adrienverge/yamllint/blob/master/CHANGELOG.rst)
- [Commits](adrienverge/yamllint@v1.26.0...v1.26.1)

Signed-off-by: dependabot[bot] <support@github.com>

application/requirements.txt

@@ -163,9 +163,8 @@ typing-extensions==3.7.4.3 \
 wrapt==1.12.1 \
     --hash=sha256:b62ffa81fb85f4332a4f609cab4ac40709470da05643a082ec1eb88e6d9b97d7 \
     # via burnham (setup.py)
-yamllint==1.26.0 \
-    --hash=sha256:8a5f8e442f49309eaf3e9d7232ce76f2fc8026f5c0c0b164b83f33fed1399637 \
-    --hash=sha256:b0e4c89985c7f5f8451c2eb8c67d804d10ac13a4abe031cbf49bdf3465d01087 \
+yamllint==1.26.1 \
+    --hash=sha256:87d9462b3ed7e9dfa19caa177f7a77cd9888b3dc4044447d6ae0ab233bcd1324 \
     # via glean-parser
 zipp==3.4.1 \
     --hash=sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098 \