chore(deps): Update pyupgrade version to 3.21.2 (#930)

might fix
https://github.com/CycloneDX/cyclonedx-python-lib/actions/runs/20417619990/job/58663570418#step:6:193

---------

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>
Signed-off-by: Joshua Kugler <tek30584@adobe.com>

Author: jkowalleck

pyproject.toml

@@ -103,7 +103,10 @@ tomli = { version = "2.3.0", python = "<3.11" }
 tox = "4.30.3"
 xmldiff = "2.7.0"
 bandit = "1.8.6"
-pyupgrade = "3.21.0"
+pyupgrade = [
+  { version = "3.21.0", python = "<3.10" },
+  { version = "3.21.2", python = ">=3.10" },
+]
 deptry = "0.23.1"
 # for tests, use the GPL-version of jsonschema format validators - they are faster
 jsonschema = { version = "*", extras = ["format"], optional=true }