Revert python command

Makefile

@@ -1,5 +1,5 @@
-SOURCES=$(shell python3.12 scripts/read-config.py --sources )
-FAMILY=$(shell python3.12 scripts/read-config.py --family )
+SOURCES=$(shell python3 scripts/read-config.py --sources )
+FAMILY=$(shell python3 scripts/read-config.py --family )
 DRAWBOT_SCRIPTS=$(shell ls documentation/*.py)
 DRAWBOT_OUTPUT=$(shell ls documentation/*.py | sed 's/\.py/.png/g')
 
@@ -21,19 +21,19 @@ venv: venv/touchfile
 venv-test: venv-test/touchfile
 
 customize: venv
-	. venv/bin/activate; python3.12 scripts/customize.py
+	. venv/bin/activate; python3 scripts/customize.py
 
 build.stamp: venv sources/config.yaml $(SOURCES)
 	rm -rf fonts
 	(for config in sources/config*.yaml; do . venv/bin/activate; gftools builder $$config; done)  && touch build.stamp
 
 venv/touchfile: requirements.txt
-	test -d venv || python3.12 -m venv venv
+	test -d venv || python3 -m venv venv
 	. venv/bin/activate; pip install -Ur requirements.txt
 	touch venv/touchfile
 
 venv-test/touchfile: requirements-test.txt
-	test -d venv-test || python3.12 -m venv venv-test
+	test -d venv-test || python3 -m venv venv-test
 	. venv-test/bin/activate; pip install -Ur requirements-test.txt
 	touch venv-test/touchfile
 
@@ -46,7 +46,7 @@ proof: venv build.stamp
 images: venv $(DRAWBOT_OUTPUT)
 
 %.png: %.py build.stamp
-	. venv/bin/activate; python3.12 $< --output $@
+	. venv/bin/activate; python3 $< --output $@
 
 clean:
 	rm -rf venv