Replace ts-jest with @swc/jest for Jest TypeScript transforms

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Co-authored-by: hzhangxyz <11623447+hzhangxyz@users.noreply.github.com>

Author: Copilot

egg/jest.config.mjs

@@ -3,6 +3,6 @@ export default {
     collectCoverage: true,
     extensionsToTreatAsEsm: [".mts"],
     transform: {
-        "^.+\\.m?tsx?$": ["ts-jest", {}],
+        "^.+\\.m?tsx?$": ["@swc/jest"],
     },
 };