Release 15.0.0 (#234)

## What's Changed
* feat: infer categories of categorical columns by @oltionchampari in
#229
* chore: version pinning by @dvdanielamoitzi in
#231
* deps(pip): remove werkzeug again by @thinkh in
#232
* deps: tdp_core@23.0.2 + ordino@15.0.1 by @thinkh in
#233

## New Contributors
* @dvdanielamoitzi made their first contribution in
#231

**Full Changelog**:
v14.0.1...v15.0.0

.gitignore

@@ -15,6 +15,7 @@ __pycache__/
 *.pot
 *.pyc
 *.swp
+.venv
 *.lock
 # due to using tox and pytest
 .tox
@@ -26,7 +27,7 @@ node_modules/
 /tests/**/*.map
 *.css
 package-lock.json
-/yarn.lock
+!yarn.lock
 # yarn
 .pnp.*
 .yarn/*