update rollup version to 3.29.5 (https://github.com/rollup/rollup/releases/tag/v3.29.5) which includes a vulnerability fix

J=VULN-39403,VULN-39404
TEST=manual

built package, smoke test using test-site

addressed:
-  Cross-site Scripting vulnerability in [rollup](https://github.com/rollup/rollup/releases/tag/v2.79.2) in test-site package: https://yexttest.atlassian.net/browse/VULN-39404?focusedCommentId=1649810
- babel-plugin-polyfill-regenerator issue: https://yexttest.atlassian.net/browse/VULN-38484?focusedCommentId=1649848. Note that updating to eslint-config@1.0.2 didn’t actually update babel-plugin-polyfill-regenerator, doing a manual update of the direct parent dep @babel/plugin-transform-runtime did bump up the polyfill dep to 0.6.3.



J=VULN-39404&VULN-38484

J=CLIP-1675
TEST=manual,auto

verified on test-site that the panel remains at the correct scroll position after being reloaded/opened in another tab. Also verified that multiple bot panels do not override each other scroll position.

added and ran unit test