gpgme: add python3.13 support

pkgs/development/libraries/gpgme/default.nix

@@ -43,6 +43,8 @@ stdenv.mkDerivation rec {
   patches = [
     # Support Python 3.10-3.12, remove distutils, https://dev.gnupg.org/D545
     ./python-310-312-remove-distutils.patch
+    # Support Python 3.13
+    ./python313-support.patch
     # Fix a test after disallowing compressed signatures in gpg (PR #180336)
     ./test_t-verify_double-plaintext.patch
     # Don't use deprecated LFS64 APIs (removed in musl 1.2.4)

pkgs/development/libraries/gpgme/python313-support.patch

@@ -0,0 +1,13 @@
+diff --git a/configure.ac b/configure.ac
+index ae4c7da0..9a0401aa 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -591,7 +591,7 @@ if test "$found_py" = "1"; then
+          # Reset everything, so that we can look for another Python.
+           m4_foreach([mym4pythonver],
+                      [[2.7],[3.4],[3.5],[3.6],[3.7],[3.8],[3.9],[3.10],
+-                      [3.11],[3.12],[all]],
++                      [3.11],[3.12],[3.13],[all]],
+            [unset PYTHON
+            unset PYTHON_VERSION
+            unset PYTHON_CPPFLAGS