Bump sigmf from 1.2.2 to 1.2.3

Bumps [sigmf](https://github.com/sigmf/sigmf-python) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/sigmf/sigmf-python/releases)
- [Commits](sigmf/sigmf-python@v1.2.2...v1.2.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

static-requirements.txt

@@ -1,3 +1,3 @@
 black==24.8.0
 pytype==2024.4.11
-sigmf==1.2.2
+sigmf==1.2.3