Bump dotnet-sdk from 9.0.307 to 9.0.308 (#140)

Bumps [dotnet-sdk](https://github.com/dotnet/sdk) from 9.0.307 to
9.0.308.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dotnet/sdk/commit/46e170c517756f03b7ed2af86185bf05d2892cf6"><code>46e170c</code></a>
Merged PR 55161: Prep for 308 hotfix by removing vssdk feeds</li>
<li><a
href="https://github.com/dotnet/sdk/commit/6ca86fcbe4f54c3982b04cd66550a4aabddcfd63"><code>6ca86fc</code></a>
broadly disable nuget audit on all test packages</li>
<li><a
href="https://github.com/dotnet/sdk/commit/ed961003c83ef2ffdc7b788404c818200ff8f918"><code>ed96100</code></a>
disable nuget audit for this test package</li>
<li><a
href="https://github.com/dotnet/sdk/commit/126344c8e1e7184e4c589041c0cd5a7634bec538"><code>126344c</code></a>
Update the minimum msbuild version to avoid audit errors</li>
<li><a
href="https://github.com/dotnet/sdk/commit/d44e1bfd9a44447418099801e1beb559a5f11a04"><code>d44e1bf</code></a>
Remove vssdk feeds</li>
<li><a
href="https://github.com/dotnet/sdk/commit/28d2d92725bb8ae9dea6650d80cb0c3d1b1300f9"><code>28d2d92</code></a>
Update branding and downgrade implicit version</li>
<li>See full diff in <a
href="https://github.com/dotnet/sdk/compare/v9.0.307...v9.0.308">compare
view</a></li>
</ul>
</details>
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

global.json

@@ -4,7 +4,7 @@
   },
   "sdk": {
     "allowPrerelease": false,
-    "version": "9.0.307",
+    "version": "9.0.308",
     "rollForward": "latestPatch"
   }
 }