build(deps): bump platformdirs from 4.3.6 to 4.3.7 (sigstore#1333)

Bumps [platformdirs](https://github.com/tox-dev/platformdirs) from 4.3.6 to 4.3.7.
- [Release notes](https://github.com/tox-dev/platformdirs/releases)
- [Changelog](https://github.com/tox-dev/platformdirs/blob/main/CHANGES.rst)
- [Commits](tox-dev/platformdirs@4.3.6...4.3.7)

---
updated-dependencies:
- dependency-name: platformdirs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

install/requirements.txt

@@ -367,9 +367,9 @@ multidict==6.1.0 \
     --hash=sha256:f90c822a402cb865e396a504f9fc8173ef34212a342d92e362ca498cad308e28 \
     --hash=sha256:ff3827aef427c89a25cc96ded1759271a93603aba9fb977a6d264648ebf989db
     # via grpclib
-platformdirs==4.3.6 \
-    --hash=sha256:357fb2acbc885b0419afd3ce3ed34564c13c9b95c89360cd9563f73aa5e2b907 \
-    --hash=sha256:73e575e1408ab8103900836b97580d5307456908a03e92031bab39e4554cc3fb
+platformdirs==4.3.7 \
+    --hash=sha256:a03875334331946f13c549dbd8f4bac7a13a50a895a0eb1e8c6a8ace80d40a94 \
+    --hash=sha256:eb437d586b6a0986388f0d6f74aa0cde27b48d0e3d66843640bfb6bdcdb6e351
     # via sigstore
 pyasn1==0.6.1 \
     --hash=sha256:0d632f46f2ba09143da3a8afe9e33fb6f92fa2320ab7e886e2d0f7672af84629 \
@@ -540,7 +540,7 @@ securesystemslib==1.2.0 \
 sigstore==3.6.1 \
     --hash=sha256:b568b16322222e834940acabdc84fbb16c8780874c3c21c6c8dde928dae0f881 \
     --hash=sha256:ee60fdc9236fd6709271ad53b44027461360c3fde155d2af15482e4c451ff865
-    # via -r requirements.in
+    # via -r install/requirements.in
 sigstore-protobuf-specs==0.3.2 \
     --hash=sha256:50c99fa6747a3a9c5c562a43602cf76df0b199af28f0e9d4319b6775630425ea \
     --hash=sha256:cae041b40502600b8a633f43c257695d0222a94efa1e5110a7ec7ada78c39d99