Bump JS client to @solana/kit v7

Kit v7 removes the synchronous `getMinimumBalanceForRentExemption` helper,
so `getCreateMintInstructionPlan` now takes a client and fetches the
rent-exempt minimum via `rpc.getMinimumBalanceForRentExemption(...).send()`,
mirroring the client's other async plan builders. This makes the plan
builder async and adds the rent RPC to the plugin requirements.

Author: lorisleiva

clients/js/package.json

@@ -44,14 +44,14 @@
         "prepublishOnly": "pnpm build"
     },
     "dependencies": {
-        "@solana-program/system": "^0.12.0"
+        "@solana-program/system": "^0.13.0"
     },
     "devDependencies": {
         "@solana-config/oxc": "^0.1.1",
-        "@solana/kit": "^6.10.0",
-        "@solana/kit-client-rpc": "^0.9.0",
-        "@solana/kit-plugin-litesvm": "^0.10.0",
-        "@solana/kit-plugin-signer": "^0.10.0",
+        "@solana/kit": "^7.0.0",
+        "@solana/kit-client-rpc": "^0.13.0",
+        "@solana/kit-plugin-litesvm": "^0.13.0",
+        "@solana/kit-plugin-signer": "^0.13.0",
         "@types/node": "^24",
         "oxfmt": "^0.55.0",
         "oxlint": "^1.70.0",
@@ -63,7 +63,7 @@
         "vitest": "^4.0.15"
     },
     "peerDependencies": {
-        "@solana/kit": "^6.10.0"
+        "@solana/kit": "^7.0.0"
     },
     "engines": {
         "node": ">=24.0.0"