Update rust-lang/rust branch from master to main

https://blog.rust-lang.org/inside-rust/2025/10/16/renaming-the-default-branch-of-rust-lang-rust/

Author: aDotInTheVoid

README.md

@@ -28,7 +28,7 @@ measure first.
 ## Contributing
 
 This repo is a reexport of
-[`rustdoc-json-types`](https://github.com/rust-lang/rust/blob/master/src/rustdoc-json-types/lib.rs)
+[`rustdoc-json-types`](https://github.com/rust-lang/rust/blob/main/src/rustdoc-json-types/lib.rs)
 from the rust repo. Any change to the contents of [`src/`](src/), should be sent
 to [`rust-lang/rust`](https://github.com/rust-lang/rust/), via their [normal
 contribution

update.sh

@@ -6,7 +6,7 @@ pyjq() {
 
 case "$#" in
     0)
-        ref="master"
+        ref="main"
         ;;
     1)
         ref="$1"