Bump importlib-metadata from 2.0.0 to 3.7.3 in /application

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 2.0.0 to 3.7.3.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/CHANGES.rst)
- [Commits](python/importlib_metadata@v2.0.0...v3.7.3)

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

application/requirements.txt

@@ -70,9 +70,9 @@ glean-sdk==34.1.0 \
     --hash=sha256:158ec9dbdbe889988adff2b4dbcfb54d47c7c33b6d36134f965f1f083c9816af \
     --hash=sha256:eac5337a7dd91afed720eb14a689220ab394ac1a6fa870688175cb0228796a0e \
     # via burnham (setup.py)
-importlib-metadata==2.0.0 \
-    --hash=sha256:77a540690e24b0305878c37ffd421785a6f7e53c8b5720d211b211de8d0e95da \
-    --hash=sha256:cefa1a2f919b866c5beb7c9f7b0ebb4061f30a8a9bf16d609b000e2dfaceb9c3 \
+importlib-metadata==3.7.3 \
+    --hash=sha256:b74159469b464a99cb8cc3e21973e4d96e05d3024d337313fedb618a6e86e6f4 \
+    --hash=sha256:742add720a20d0467df2f444ae41704000f50e1234f46174b51f9c6031a1bd71 \
     # via jsonschema
 jinja2==2.11.3 \
     --hash=sha256:03e47ad063331dd6a3f04a43eddca8a966a26ba0c5b7207a9a9e4e08f1b29419 \