Convert some regex strings to raw format
Using Python 3.12.0 for `dev/run` gives these warnings:
```
❯ dev/run -a adm:pass --with-haproxy --no-eval REMSHID=1 dev/remsh
/Users/jay/repos/couchdb/dev/run:534: SyntaxWarning: invalid escape sequence '\d'
JAVA_VERSION_RE = re.compile('"(\d+\.\d+).*"')
/Users/jay/repos/couchdb/dev/run:686: SyntaxWarning: invalid escape sequence '\['
"^\[httpd\]$",
/Users/jay/repos/couchdb/dev/run:694: SyntaxWarning: invalid escape sequence '\['
"^\[native_query_servers\]$",
```
This changes the strings in question to "raw" format, and eliminates
the warnings.
1 file changed
