Update dependency phoenix_live_dashboard to ~> 0.8

[renovate]

This PR contains the following updates:

Package	Update	Change
phoenix_live_dashboard (source)	minor	~> 0.6 -> ~> 0.8

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Release Notes

phoenixframework/phoenix_live_dashboard (phoenix_live_dashboard)

v0.8.6

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• Update Erlang docs url
• Fix rendering of durations in Elixir v1.18+
• Fix warnings on Elixir v1.18+
• Remove img nonce which had no effect whatsoever

v0.8.5

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• Provide a mechanism for user extensible LiveView hooks
• Add Erlang/OTP 27 Process label support

v0.8.4

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• Add immutable directive to cache-control header
• Wrap log lines in request logger page
• Fix deprecation warnings on LiveView release candidate

v0.8.3

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• Address deprecation warnings from Phoenix.LiveView and Phoenix.HTML

v0.8.2

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• Support Phoenix.LiveView 0.20.0

v0.8.1

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• Fix warnings on more recent Elixir versions
• Fix OS Mon bug on Windows
• Support custom on_mount callback

v0.8.0

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• Support and require Phoenix.LiveView 0.19.0
• Memory Allocators page
• Serve static assets from the router
• Use the new Phoenix.Component

v0.7.2

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• Support Phoenix.LiveView 0.18.3

v0.7.1

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• Support distribution metrics
• Load Phoenix assets from app directory

v0.7.0

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• Support and require Phoenix.LiveView 0.18.0
• Add fullscreen when viewing the app info
• Use csp_nonces on os_mon page

v0.6.5

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• Support and require Phoenix.LiveView 0.17.7

v0.6.4

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• Fix crash on PID info modal when remote pids were present

v0.6.3

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• Fix crash on metrics page when none of the tags specified in a metric are found
• Fix crash on OS data when CPU information cannot be retrieved
• Do not generate compile-time dependencies for dashboard parameters

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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: mix.lock

Command failed: mix deps.update phoenix_live_dashboard
** (Mix) Hex dependency resolution failed