Build(deps): Bump egor-tensin/setup-mingw from 2 to 3 (#653)

Bumps
[egor-tensin/setup-mingw](https://github.com/egor-tensin/setup-mingw)
from 2 to 3.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="41b837e47d"><code>41b837e</code></a>
v3</li>
<li><a
href="3cf7be4e9d"><code>3cf7be4</code></a>
workflows/test: expand list of versions</li>
<li><a
href="9e75036947"><code>9e75036</code></a>
workflows/test: verify that a specific version is installed</li>
<li><a
href="081037af6d"><code>081037a</code></a>
workflows/test: fix root directory path</li>
<li><a
href="9c984c85a0"><code>9c984c8</code></a>
drop Cygwin, it's obsolete</li>
<li><a
href="d0a09b5401"><code>d0a09b5</code></a>
remove the static linking workaround</li>
<li><a
href="f26d16101a"><code>f26d161</code></a>
workflows/test: upgrade runner images and actions</li>
<li>See full diff in <a
href="https://github.com/egor-tensin/setup-mingw/compare/v2...v3">compare
view</a></li>
</ul>
</details>
<br />


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</details>

.github/workflows/build.yml

@@ -263,7 +263,7 @@ jobs:
             sudo update-alternatives --set c++ /usr/bin/clang++-${{ matrix.clang-version }}
 
       - name: Set up MinGW
-        uses: egor-tensin/setup-mingw@v2
+        uses: egor-tensin/setup-mingw@v3
         if: "${{ startsWith(matrix.platform, 'MinGW') }}"
         with:
           platform: x64