importlib_metadata: drop Python 3.9 support.

Only users on-tree (pytest, qutebrowser) are already 3.10 only.

dev-python/importlib_metadata/importlib_metadata-6.8.0.recipe

@@ -6,7 +6,7 @@ by PyPA tools (or other conforming packages). It does not support:
 HOMEPAGE="https://pypi.python.org/pypi/importlib-metadata"
 COPYRIGHT="2017-2023 Jason R. Coombs, Barry Warsaw"
 LICENSE="Apache v2"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="https://pypi.python.org/packages/source/i/$portName/$portName-$portVersion.tar.gz"
 CHECKSUM_SHA256="dbace7892d8c0c4ac1ad096662232f831d4e64f4c4545bd53016a3e9d4654743"
 
@@ -23,13 +23,12 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python39 python310)
-PYTHON_VERSIONS=(3.9 3.10)
-for i in "${!PYTHON_PACKAGES[@]}"; do
-	pythonPackage=${PYTHON_PACKAGES[i]}
-	pythonVersion=${PYTHON_VERSIONS[$i]}
+PYTHON_VERSIONS=(3.10)
 
-	eval "PROVIDES_${pythonPackage}=\"
+for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+	pythonPackage=python${pythonVersion//.}
+
+	eval "PROVIDES_$pythonPackage=\"
 		${portName}_$pythonPackage = $portVersion
 		\""
 	eval "REQUIRES_$pythonPackage=\"
@@ -56,14 +55,11 @@ INSTALL()
 	# generating wrong default value in that case.
 	export SETUPTOOLS_SCM_PRETEND_VERSION=$portVersion
 
-	for i in "${!PYTHON_PACKAGES[@]}"; do
-		pythonPackage=${PYTHON_PACKAGES[i]}
+	for pythonVersion in ${PYTHON_VERSIONS[@]}; do
+		pythonPackage=python${pythonVersion//.}
 
 		python=python${PYTHON_VERSIONS[$i]}
 
-		# Needed to build without -G in the haikuporter build call.
-		# the presence of HaikuPorter's working .git dir seems to confuse
-		# some python's builds/packages.
 		rm -rf dist
 
 		$python -m build --wheel --skip-dependency-check --no-isolation