Fix: update the existing comment instead of creating a new one

[AhmedBaset]

When creating a comment we put an HTML comment inside, to use later to decide whether to update the existing comment or create a new one with this template <!-- __NEXTJS_BUNDLE_${PACKAGE_NAME} -->.

nextjs-bundle-analysis/compare.js

Lines 195 to 197 in a4cf35f

	// we add this tag so that our action can be able to easily and consistently find the
	// right comment to edit as more commits are pushed.
	output += `<!-- __NEXTJS_BUNDLE_${PACKAGE_NAME} -->`

In the workflow we search for the comment but without the ${PACKAGE_NAME.

nextjs-bundle-analysis/template.yml

Lines 107 to 113 in a4cf35f

	- name: Find Comment
	uses: peter-evans/find-comment@v2
	if: success() && github.event.number
	id: fc
	with:
	issue-number: ${{ github.event.number }}
	body-includes: '<!-- __NEXTJS_BUNDLE -->'

This PR fixes the mismatch between the two

- body-includes: '<!-- __NEXTJS_BUNDLE_ -->'
+ body-includes: '<!-- __NEXTJS_BUNDLE'

[hashicorp-cla]

All committers have signed the CLA.