chore(dashboard): update TiDB Dashboard to v7.6.0-473bf80a [master] (#7647)

[ti-chi-bot]

This is an automated cherry-pick of #7647

What problem does this PR solve?

Close #7646 , fix instance profiling white screen page issue

Issue Number: ref #4257

Update TiDB Dashboard to v7.6.0-473bf80a.

This PR also support TiProxy & TiCDC components in tidb-dashboard.

Release note

1. Support showing TiProxy & TiCDC components

Test

$ make pd-server
$ tiup playground nightly --pd.binpath ./bin/pd-server --tiflash 0 --tiproxy 1   --ticdc 1

[ti-chi-bot[bot]]

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[ti-chi-bot[bot]]

This cherry pick PR is for a release branch and has not yet been approved by triage owners. Adding the do-not-merge/cherry-pick-not-approved label.

To merge this cherry pick:

1. It must be approved by the approvers firstly.
2. AFTER it has been approved by approvers, please wait for the cherry-pick merging approval from triage owners.

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[ti-chi-bot[bot]]

@ti-chi-bot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci/build	dc42ceafb96ef0803d25cc2e9e76912481af5d36	link	true	/test build

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[ti-chi-bot[bot]]

PR needs rebase.

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[rleungx]

Confirmed with @baurine, this PR is no longer needed.