chore: bump DeterminateSystems/magic-nix-cache-action from 8 to 9 (#230)

Bumps
[DeterminateSystems/magic-nix-cache-action](https://github.com/determinatesystems/magic-nix-cache-action)
from 8 to 9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/determinatesystems/magic-nix-cache-action/releases">DeterminateSystems/magic-nix-cache-action's
releases</a>.</em></p>
<blockquote>
<h2>v9</h2>
<h2>What's Changed</h2>
<ul>
<li>ci workflow: don't check initial substituter list by <a
href="https://github.com/colemickens"><code>@​colemickens</code></a> in
<a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/90">DeterminateSystems/magic-nix-cache-action#90</a></li>
<li>Matrix by <a
href="https://github.com/grahamc"><code>@​grahamc</code></a> in <a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/96">DeterminateSystems/magic-nix-cache-action#96</a></li>
<li>Update <code>detsys-ts</code>: Merge pull request <a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/69">#69</a>
from DeterminateSystems/update-deps by <a
href="https://github.com/detsys-pr-bot"><code>@​detsys-pr-bot</code></a>
in <a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/99">DeterminateSystems/magic-nix-cache-action#99</a></li>
<li>Fixup diagnostic URL handling by <a
href="https://github.com/grahamc"><code>@​grahamc</code></a> in <a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/100">DeterminateSystems/magic-nix-cache-action#100</a></li>
<li>Diagnostics by <a
href="https://github.com/grahamc"><code>@​grahamc</code></a> in <a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/101">DeterminateSystems/magic-nix-cache-action#101</a></li>
<li>Warn on mnc usage by <a
href="https://github.com/grahamc"><code>@​grahamc</code></a> in <a
href="https://redirect.github.com/DeterminateSystems/magic-nix-cache-action/pull/102">DeterminateSystems/magic-nix-cache-action#102</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/compare/v8...v9">https://github.com/DeterminateSystems/magic-nix-cache-action/compare/v8...v9</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/6221693898146dc97e38ad0e013488a16477a4c4"><code>6221693</code></a>
Warn on mnc usage (<a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/102">#102</a>)</li>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/f7eb5b510a46ce3f40945f76d6176296370bdb51"><code>f7eb5b5</code></a>
Diagnostics (<a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/101">#101</a>)</li>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/fe89a484fefe341a62c3488265cfc9aabfcb3a36"><code>fe89a48</code></a>
Fixup diagnostic URL handling (<a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/100">#100</a>)</li>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/13dabe8ccc07ba82ad7ccfa52035616223194012"><code>13dabe8</code></a>
Update <code>detsys-ts</code> for: `Merge pull request <a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/69">#69</a>
from DeterminateSystems/updat...</li>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/9ab3ce70d6d64cd6e4f4506ccb757152453ccaa6"><code>9ab3ce7</code></a>
Matrix (<a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/96">#96</a>)</li>
<li><a
href="https://github.com/DeterminateSystems/magic-nix-cache-action/commit/a76a83091cd8728db8c37312dbdd0eeb1177a6c0"><code>a76a830</code></a>
ci workflow: don't check initial substituter list (<a
href="https://redirect.github.com/determinatesystems/magic-nix-cache-action/issues/90">#90</a>)</li>
<li>See full diff in <a
href="https://github.com/determinatesystems/magic-nix-cache-action/compare/v8...v9">compare
view</a></li>
</ul>
</details>
<br />


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.github/workflows/wf_build_artifacts.yaml

@@ -52,7 +52,7 @@ jobs:
           substituters = https://cache.nixos.org/?priority=40
           trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
-    - uses: DeterminateSystems/magic-nix-cache-action@v8
+    - uses: DeterminateSystems/magic-nix-cache-action@v9
       with:
         diagnostic-endpoint: ""
         use-flakehub: false

.github/workflows/wf_check.yaml

@@ -38,7 +38,7 @@ jobs:
           substituters = https://cache.nixos.org/?priority=40
           trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
-    - uses: DeterminateSystems/magic-nix-cache-action@v8
+    - uses: DeterminateSystems/magic-nix-cache-action@v9
       with:
         diagnostic-endpoint: ""
         use-flakehub: false