Update mkdocs dependencies and fix makefile targets

Makefile

@@ -157,21 +157,21 @@ lint-yaml:
 
 $(PYTHON):
 	$(info Creating virtualenv in $(VENV))
-	@python -m venv $(VENV)
+	@python3 -m venv $(VENV)
 
 $(DOCS_DEPS): $(PYTHON) docs/requirements.txt
 	$(info Installing dependencies)
-	@pip install --upgrade pip
-	@pip install --requirement docs/requirements.txt
+	@$(VENV)/bin/pip install --upgrade pip
+	@$(VENV)/bin/pip install --requirement docs/requirements.txt
 	@touch $(DOCS_DEPS)
 
 docs/setup: $(DOCS_DEPS)
 
 docs/serve: docs/setup
 	$(info Running documentation live development server)
-	@mkdocs serve --strict
+	@$(VENV)/bin/mkdocs serve --strict
 
 .PHONY: docs
 docs: docs/setup
 	$(info Building documentation)
-	@mkdocs build --strict
+	@$(VENV)/bin/mkdocs build --strict

docs/requirements.txt

@@ -1,6 +1,6 @@
-mkdocs-material==9.5.23
-mkdocs-macros-plugin==1.0.5
-mkdocs-awesome-pages-plugin==2.9.2
+mkdocs-material==9.7.6
+mkdocs-macros-plugin==1.5.0
+mkdocs-awesome-pages-plugin==2.10.1
 mkdocs-exclude==1.0.2
 mdx-breakless-lists==1.0.1
-pygments==2.18.0
+pygments==2.20.0