Fetch CI tooling directly from releases

Also adds a timeout and specific paths to trigger CI

docs/development/notes.md

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+# Notes
+
+## BTreeMap
+
+Consider replacing HashMap with BTreeMap to stop nodes from shifting position constantly on every page load.
+
+See also:
+    - <https://doc.rust-lang.org/std/collections/struct.BTreeMap.html#background>
+    - `clippy::iter_over_hash_type`
+
+
+## Overall guidelines
+
+- Take refs, return owned
+- Avoid opacity
+    - Third-party macros
+    - Procedural macro attributes
+    - Returning opaque types, like `impl Trait`