Forward fix github build break due to D54280190

Summary:
X-link: facebookincubator/zstrong#720

When running getdeps as part of Github CI, the toolchains employed are found in "C:\Program Files" or "C:\Program Files(x86)" - both requiring quoting to execute.

Lets add quotes and fix tha.

Reviewed By: vitaut

Differential Revision: D54433098

fbshipit-source-id: d3570486a2a2b12f4649becc987f9da1ca65c796

build/fbcode_builder/getdeps/builder.py

@@ -70,7 +70,7 @@ def _get_cmd_prefix(self):
                 wrapper = os.path.join(self.build_dir, "succeed.bat")
                 with open(wrapper, "w") as f:
                     f.write("@echo off\n")
-                    f.write(f"call {vcvarsall} amd64\n")
+                    f.write(f'call "{vcvarsall}" amd64\n')
                     f.write("set ERRORLEVEL=0\n")
                     f.write("exit /b 0\n")
                 return [wrapper, "&&"]