Fix nim workflow (google#8098)

* Fix nim workflow

* Fix yaml

.github/workflows/build.yml

@@ -65,8 +65,8 @@ jobs:
       if: matrix.cxx == 'g++-10' && startsWith(github.ref, 'refs/tags/')
       id: hash-gcc
       run: echo "hashes=$(sha256sum Linux.flatc.binary.${{ matrix.cxx }}.zip | base64 -w0)" >> $GITHUB_OUTPUT
-      
-  build-linux-no-file-tests:    
+
+  build-linux-no-file-tests:
     name: Build Linux with -DFLATBUFFERS_NO_FILE_TESTS
     runs-on: ubuntu-latest
     steps:
@@ -76,7 +76,7 @@ jobs:
     - name: build
       run: make -j
 
-  build-linux-out-of-source:    
+  build-linux-out-of-source:
     name: Build Linux with out-of-source build location
     runs-on: ubuntu-latest
     steps:
@@ -114,8 +114,8 @@ jobs:
     - uses: actions/checkout@v3
     - name: cmake
       run: >
-        CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" 
-        -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON 
+        CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles"
+        -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
         -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
     - name: build
@@ -139,8 +139,8 @@ jobs:
       uses: microsoft/[email protected]
     - name: cmake
       run: >
-        cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release 
-        -DFLATBUFFERS_STRICT_MODE=ON 
+        cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release
+        -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
         -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
     - name: build
@@ -156,7 +156,7 @@ jobs:
       contents: write
     outputs:
       digests: ${{ steps.hash.outputs.hashes }}
-    name: Build Windows 2019 
+    name: Build Windows 2019
     runs-on: windows-2019
     steps:
     - uses: actions/checkout@v3
@@ -225,15 +225,15 @@ jobs:
       matrix:
         configuration: [
           '',
-          '-p:UnsafeByteBuffer=true', 
+          '-p:UnsafeByteBuffer=true',
           # Fails two tests currently.
           #'-p:EnableSpanT=true,UnsafeByteBuffer=true'
           ]
     steps:
     - uses: actions/checkout@v3
     - name: Setup .NET Core SDK
       uses: actions/setup-dotnet@v3
-      with: 
+      with:
         dotnet-version: '3.1.x'
     - name: Build
       run: |
@@ -462,7 +462,7 @@ jobs:
     - name: test
       working-directory: tests
       run: bash RustTest.sh
-  
+
   build-rust-windows:
     name: Build Rust Windows
     runs-on: windows-2019
@@ -578,7 +578,7 @@ jobs:
     - uses: jiro4989/setup-nim-action@v1
     - name: install library
       working-directory: nim
-      run: nimble -y develop
+      run: nimble -y develop && nimble install
     - name: test
       working-directory: tests/nim
       run: python3 testnim.py