Unable to upgrade to Astro v4 / Starlight 0.15.0 due to plugin issue

[huijing]

The recent Astro version bump which updates to use Vite 5 is causing some issue with our https://github.com/AlexLakatos/astro-graphql-plugin.
This is blocking #2288 and #2268

> documentation@0.0.1 start /Users/huijing/Sites/interledger/rafiki/packages/documentation
> astro dev

9:41:01 AM [vite] Error when evaluating SSR module /@fs/Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts:
|- TypeError: __vite_ssr_import_1__.Slugger is not a constructor
    at /Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts:10:17
    at async instantiateModule (file:///Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/vite@5.0.7/node_modules/vite/dist/node/chunks/dep-wTaJK0Jt.js:50203:9)

9:41:01 AM [vite] Error when evaluating SSR module /@fs/Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/index.ts: failed to import "/@fs/Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts"
|- TypeError: __vite_ssr_import_1__.Slugger is not a constructor
    at /Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts:10:17
    at async instantiateModule (file:///Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/vite@5.0.7/node_modules/vite/dist/node/chunks/dep-wTaJK0Jt.js:50203:9)

9:41:01 AM [vite] Error when evaluating SSR module /Users/huijing/Sites/interledger/rafiki/packages/documentation/astro.config.mjs: failed to import "/@fs/Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/index.ts"
|- TypeError: __vite_ssr_import_1__.Slugger is not a constructor
    at /Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts:10:17
    at async instantiateModule (file:///Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/vite@5.0.7/node_modules/vite/dist/node/chunks/dep-wTaJK0Jt.js:50203:9)

[astro] Unable to load your Astro config

__vite_ssr_import_1__.Slugger is not a constructor
  Stack trace:
    at /Users/huijing/Sites/interledger/rafiki/node_modules/.pnpm/astro-graphql-plugin@0.1.0_graphql@16.8.1/node_modules/astro-graphql-plugin/src/getRelativeTypeUrl.ts:10:17
 ELIFECYCLE  Command failed with exit code 1.