ci: Add plugin compile step (#1840)

Some OS build steps were not compiling the plugins before compiling the
boundary binary. This resulted in binaries that did not have plugins
included, and would result in an error when starting a boundary server.

.github/workflows/build.yml

@@ -118,7 +118,10 @@ jobs:
           GOARCH: ${{ matrix.goarch }}
           CGO_ENABLED: 0
         run: |
-          mkdir dist out
+          mkdir -p dist out
+          unset GOPATH;
+          # Build plugins
+          sh ./scripts/plugins.sh
           go build -v -tags "ui" -ldflags "${{ env.LD_FLAGS }}" -o dist/ ./cmd/boundary
           zip -r -j out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip dist/
       - uses: actions/upload-artifact@v2
@@ -178,7 +181,10 @@ jobs:
           GOARCH: ${{ matrix.goarch }}
           CGO_ENABLED: 0
         run: |
-          mkdir dist out
+          mkdir -p dist out
+          unset GOPATH;
+          # Build plugins
+          sh ./scripts/plugins.sh
           go build -v -tags "ui" -ldflags "${{ env.LD_FLAGS }}" -o dist/ ./cmd/boundary
           zip -r -j out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip dist/
       - uses: actions/upload-artifact@v2