🌱 Downgrade to rollup v3 for multiarch builds (#1742)

Following up on PRs #1664 and #1739, downgrade to `rollup@^3.0`. The v4
of rollup has "native" code that runs the build, and that code does not
currently work with s390 builds [1]. Since konveyor is built for x86,
arm, ppc, and s390, all of those need to work.

When the s390 builds can work with the wasm bits, we can upgrade to
`rollup@^4.0` again.

[1] - rollup/rollup#5354

Signed-off-by: Scott J Dickerson <sdickers@redhat.com>

package.json

@@ -66,7 +66,7 @@
     "lint-staged": "^14.0.1",
     "prettier": "^3.0.2",
     "rimraf": "^4.4.1",
-    "rollup": "^4.9.5",
+    "rollup": "^3.29.4",
     "rollup-plugin-copy": "^3.5.0",
     "ts-jest": "^29.1.1",
     "ts-node": "^10.9.1",