Bump packaging from 26.2 to 26.3

Bumps [packaging](https://github.com/pypa/packaging) from 26.2 to 26.3.
- [Release notes](https://github.com/pypa/packaging/releases)
- [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst)
- [Commits](pypa/packaging@26.2...26.3)

---
updated-dependencies:
- dependency-name: packaging
  dependency-version: '26.3'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -8,9 +8,9 @@ microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \
     --hash=sha256:8a2568a8390a4ffb5af2f05e7642454e03b887e582d192b6316326974eab5d0f
     # via -r requirements.in
-packaging==26.2 \
-    --hash=sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e \
-    --hash=sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661
+packaging==26.3 \
+    --hash=sha256:94edc256424af38762eb31306eed28beb9f0efc50a8837492c9d6fd6004aed79 \
+    --hash=sha256:d7193f7c8e4e93f444fde0262bf90af30e16fa0ad0ad44cb553c87339b23cd1c
     # via -r requirements.in
 tomli==2.4.1 \
     --hash=sha256:01f520d4f53ef97964a240a035ec2a869fe1a37dde002b57ebc4417a27ccd853 \