feat: add React Compiler support for primitives

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: joshblack

.changeset/react-compiler-primitives.md

@@ -0,0 +1,5 @@
+---
+'@primer/react': patch
+---
+
+Heading, Link, Pagehead, Portal, and SideNav: Improve rendering performance with React Compiler support

packages/react/script/react-compiler.mjs

@@ -20,14 +20,9 @@ const unsupportedPatterns = [
   'src/Checkbox/**/*.tsx',
   'src/ConfirmationDialog/**/*.tsx',
   'src/Dialog/**/*.tsx',
-  'src/Heading/**/*.tsx',
-  'src/Link/**/*.tsx',
-  'src/Pagehead/**/*.tsx',
   'src/PageLayout/**/*.tsx',
   'src/Pagination/**/*.tsx',
-  'src/Portal/**/*.tsx',
   'src/SelectPanel/**/*.tsx',
-  'src/SideNav.tsx',
   'src/UnderlineNav/**/*.tsx',
   'src/experimental/SelectPanel2/**/*.tsx',
   'src/hooks/useAnchoredPosition.ts',