chore(python-deps): update dependency certifi to v2026 in all dependant actions

Author: renovate[bot]

actions/create_unique_testpypi_version/requirements.txt

@@ -1,7 +1,7 @@
 annotated-types==0.7.0
 attrs==25.4.0
 beautifulsoup4==4.14.3
-certifi==2025.11.12
+certifi==2026.1.4
 charset-normalizer==3.4.4
 idna==3.11
 mailbits==0.2.3

actions/update_development_dependencies/requirements.txt

@@ -3,7 +3,7 @@ attrs==25.4.0
 beautifulsoup4==4.14.3
 build==1.3.0
 cachecontrol[filecache]==0.14.4
-certifi==2025.11.12
+certifi==2026.1.4
 cffi==2.0.0 ; (sys_platform == "darwin" or sys_platform == "linux") and (sys_platform == "darwin" or platform_python_implementation != "PyPy")
 cfgv==3.5.0
 charset-normalizer==3.4.4