feat(rspeedy/core)!: requires typescript 5.1.6 - 5.8.x (#480)

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## Summary

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problem or issue does this pull request resolve? -->

Since we are now bundling `ts-blank-space` and externalizing
`typescript` (#475), we need to manually specify the `peerDependencies`.

The version requirement is copied from
[`ts-blank-space/package.json`](https://github.com/bloomberg/ts-blank-space/blob/4102b1f26b1c53d38a1de74c10f262af5fd34fe8/package.json#L26).

> [!NOTE]
> The `typescript` is not required when:
>
> 1. Using JavaScript (`.js`) configuration
> 1. Using Node.js v23.6+
> 1. Using Node.js v22.6+ with `--experimental-strip-types` or
`--experimental-transform-types`

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as GitHub issues or related discussions. -->

## Checklist

<!--- Check and mark with an "x" -->

- [ ] Tests updated (or not required).
- [ ] Documentation updated (or not required).

Author: colinaaa

.changeset/tired-lamps-attend.md

@@ -0,0 +1,11 @@
+---
+"@lynx-js/rspeedy": minor
+---
+
+**BREAKING CHANGE**: Added explicit TypeScript peer dependency requirement of 5.1.6 - 5.8.x.
+
+This formalizes the existing TypeScript version requirement in `peerDependencies` (marked as optional since it is only needed for TypeScript configurations). The actual required TypeScript version has not changed.
+
+Note: This may cause installation to fail if you have strict peer dependency checks enabled.
+
+Node.js v22.7+ users can bypass TypeScript installation using `--experimental-transform-types` or `--experimental-strip-types` flags. Node.js v23.6+ users don't need any flags. See [Node.js - TypeScript](https://nodejs.org/api/typescript.html) for details.

packages/rspeedy/core/package.json

@@ -81,6 +81,14 @@
     "vitest": "^3.1.1",
     "webpack": "^5.98.0"
   },
+  "peerDependencies": {
+    "typescript": "5.1.6 - 5.8.x"
+  },
+  "peerDependenciesMeta": {
+    "typescript": {
+      "optional": true
+    }
+  },
   "engines": {
     "node": ">=18"
   },