[TASK] Add usermapping for linux (#756)

Co-authored-by: Ines Willenbrock <44277221+ineswillenbrock@users.noreply.github.com>

Author: github-actions[bot]

Makefile

@@ -7,13 +7,13 @@ help: ## Displays this list of targets with descriptions
 docs: ## Generate projects documentation (from "Documentation" directory)
 	mkdir -p Documentation-GENERATED-temp
 
-	docker run --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation
+	docker run --user $(shell id -u):$(shell id -g) --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation
 
 .PHONY: test-docs
 test-docs: ## Test the documentation rendering
 	mkdir -p Documentation-GENERATED-temp
 
-	docker run --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --fail-on-log
+	docker run --user $(shell id -u):$(shell id -g) --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --fail-on-log
 
 .PHONY: test-lint
 test-lint: ## Regenerate code snippets