It's a little picky about the value, but that seems okay.
```
❯ ./target/debug/uv pip install trio
Audited 1 package in 4ms
❯ UV_NO_CACHE=true ./target/debug/uv pip install trio
Audited 1 package in 50ms
```
Closes#1382
First, replace all usages in files in-place. I used my editor for this.
If someone wants to add a one-liner that'd be fun.
Then, update directory and file names:
```
# Run twice for nested directories
find . -type d -print0 | xargs -0 rename s/puffin/uv/g
find . -type d -print0 | xargs -0 rename s/puffin/uv/g
# Update files
find . -type f -print0 | xargs -0 rename s/puffin/uv/g
```
Then add all the files again
```
# Add all the files again
git add crates
git add python/uv
# This one needs a force-add
git add -f crates/uv-trampoline
```