Update PR templates + autogenerate (#31032)

* update templates

* same as before

* no tuning

* same as before

* move up
old-commit-hash: f6cd009c77a560a87e31d8918bab0f08c567cc1c

.github/build.py

@@ -0,0 +1,30 @@
+import pathlib
+
+GITHUB_FOLDER = pathlib.Path(__file__).parent
+
+PULL_REQUEST_TEMPLATES = (GITHUB_FOLDER / "PULL_REQUEST_TEMPLATE")
+
+order = ["fingerprint", "car_bugfix", "bugfix", "car_port", "refactor"]
+
+def create_pull_request_template():
+  with open(GITHUB_FOLDER / "pull_request_template.md", "w") as f:
+    f.write("<!-- Please copy and paste the relevant template -->\n\n")
+
+    for t in order:
+      template = PULL_REQUEST_TEMPLATES / f"{t}.md"
+      text = template.read_text()
+
+      # Remove metadata for GitHub
+      start = text.find("---")
+      end = text.find("---", start+1)
+      text = text[end + 4:]
+
+      # Remove comments
+      text = text.replace("<!-- ", "").replace("-->", "")
+
+      f.write(f"<!--- ***** Template: {template.stem.replace('_', ' ').title()} *****\n")
+      f.write(text)
+      f.write("\n\n")
+      f.write("-->\n\n")
+
+create_pull_request_template()