Adds bloom/search commands to gitignore (valkey-io#273)

### Description

If building from the instructions in the readme, the generated directory
`build-bloom-command-json` and `build-search-command-json` isn't ignored
by git. This PR properly adds it to `.gitignore`
 
### Issues Resolved

n/a

### Check List
- [x] Commits are signed per the DCO using `--signoff`

By submitting this pull request, I confirm that my contribution is made
under the terms of the BSD-3-Clause License.

---------

Signed-off-by: Kyle J. Davis <kyledvs@amazon.com>
Co-authored-by: Madelyn Olson <madelyneolson@gmail.com>

Author: stockholmux

.gitignore

@@ -1,7 +1,10 @@
 .DS_Store
 public
+build-bloom-command-json
 build-command-docs
 build-command-json
+build-json-command-json
+build-search-command-json
 build-topics
 build-clients
 content/commands/*