add '--depth=1' to speedup git clone speed

[icedfish]

git clone --help

  --depth <depth>
       Create a shallow clone with a history truncated to the specified number of commits. Implies --single-branch
       unless --no-single-branch is given to fetch the histories near the tips of all branches. If you want to
       clone submodules shallowly, also pass --shallow-submodules.

[robinjhuang]

Will this prevent installations of specific git tags? eg We allow installing stable versions of comfy as well as specific tags.

[icedfish]

Yes, you are right, sorry for not considering this situation.