chore: upgrade eslint plugins, remove eslint-plugin-github (#38046)

- Bump `eslint`, `typescript-eslint` and `eslint-plugin-unicorn` (to
v68), and configure the rules added in unicorn v66/v67/v68.
- Remove `eslint-plugin-github` and its workarounds (rules, type stub,
pnpm peer override, in-code `eslint-disable` comments); the rules worth
keeping are covered by `unicorn` equivalents.
- Apply the resulting fixes and autofixes across the JS codebase.

_Prepared with Claude (Opus 4.8)._

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

tools/eslint-rules/unescaped-html-literal.ts

@@ -12,30 +12,28 @@ const rule: JSRuleDefinition<JSRuleDefinitionTypeOptions> = {
     },
   },
 
-  create(context) {
-    return {
-      Literal(node) {
-        if (typeof node.value !== 'string' || !htmlOpenTag.test(node.value)) return;
+  create: (context) => ({
+    Literal(node) {
+      if (typeof node.value !== 'string' || !htmlOpenTag.test(node.value)) return;
 
-        context.report({
-          node,
-          messageId: 'unescapedHtmlLiteral',
-        });
-      },
-      TemplateLiteral(node) {
-        const templateStart = node.quasis[0]?.value.raw;
-        if (!templateStart || !htmlOpenTag.test(templateStart)) return;
+      context.report({
+        node,
+        messageId: 'unescapedHtmlLiteral',
+      });
+    },
+    TemplateLiteral(node) {
+      const templateStart = node.quasis[0]?.value.raw;
+      if (!templateStart || !htmlOpenTag.test(templateStart)) return;
 
-        const parent = node.parent;
-        if (parent?.type === 'TaggedTemplateExpression' && parent.tag.type === 'Identifier' && parent.tag.name === 'html') return;
+      const parent = node.parent;
+      if (parent?.type === 'TaggedTemplateExpression' && parent.tag.type === 'Identifier' && parent.tag.name === 'html') return;
 
-        context.report({
-          node,
-          messageId: 'unescapedHtmlLiteral',
-        });
-      },
-    };
-  },
+      context.report({
+        node,
+        messageId: 'unescapedHtmlLiteral',
+      });
+    },
+  }),
 };
 
 export default rule;