Bump iffy/install-nim from 5.0.5 to 5.0.6

Bumps [iffy/install-nim](https://github.com/iffy/install-nim) from 5.0.5 to 5.0.6.
- [Release notes](https://github.com/iffy/install-nim/releases)
- [Changelog](https://github.com/iffy/install-nim/blob/master/CHANGELOG.md)
- [Commits](iffy/install-nim@v5.0.5...v5.0.6)

---
updated-dependencies:
- dependency-name: iffy/install-nim
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release_build.yml

@@ -52,7 +52,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: iffy/[email protected].5
+      - uses: iffy/[email protected].6
       - name: Build binary
         run: |
           nimble install -y
@@ -78,7 +78,7 @@ jobs:
     runs-on: macos-12
     steps:
       - uses: actions/checkout@v4
-      - uses: iffy/[email protected].5
+      - uses: iffy/[email protected].6
       - name: Build binary
         run: |
           git config --global --add safe.directory /__w/choosenim/choosenim