Update dependency h2 to v4.3.0 [SECURITY]

Author: renovate[bot]

modules/python/requirements.txt

@@ -8,9 +8,9 @@ grpclib==0.4.8 \
     --hash=sha256:a5047733a7acc1c1cee6abf3c841c7c6fab67d2844a45a853b113fa2e6cd2654 \
     --hash=sha256:d8823763780ef94fed8b2c562f7485cf0bbee15fc7d065a640673667f7719c9a
     # via -r requirements.in
-h2==4.2.0 \
-    --hash=sha256:479a53ad425bb29af087f3458a61d30780bc818e4ebcf01f0b536ba916462ed0 \
-    --hash=sha256:c8a52129695e88b1a0578d8d2cc6842bbd79128ac685463b887ee278126ad01f
+h2==4.3.0 \
+    --hash=sha256:6c59efe4323fa18b47a632221a1888bd7fde6249819beda254aeca909f221bf1 \
+    --hash=sha256:c438f029a25f7945c69e0ccf0fb951dc3f73a5f6412981daee861431b70e2bdd
     # via grpclib
 hpack==4.1.0 \
     --hash=sha256:157ac792668d995c657d93111f46b4535ed114f0c9c8d672271bbec7eae1b496 \