Add `eslint-plugin-github` and fix issues (#29201)

This plugin has a few useful rules. The only thing I dislike about it is
that it pulls in a rather big number of dependencies for react-related
rules we don't use, but it can't really be avoided.

Rule docs:
https://github.com/github/eslint-plugin-github?tab=readme-ov-file#rules

2 files changed, 10 insertions, 2 deletions

diff --git a/build/generate-images.js b/build/generate-images.js
index a3a0f8d8f3..09e3e068af 100755
--- a/build/generate-images.js
+++ b/build/generate-images.js
@@ -79,4 +79,8 @@ async function main() {
   ]);
 }
 
-main().then(exit).catch(exit);
+try {
+  exit(await main());
+} catch (err) {
+  exit(err);
+}
diff --git a/build/generate-svg.js b/build/generate-svg.js
index b845da9367..2c0a5e37ba 100755
--- a/build/generate-svg.js
+++ b/build/generate-svg.js
@@ -63,4 +63,8 @@ async function main() {
   ]);
 }
 
-main().then(exit).catch(exit);
+try {
+  exit(await main());
+} catch (err) {
+  exit(err);
+}