fix: Update templates to handle optional httpx client (#1440)

### Description

- Update templates to handle optional httpx client.

### Testing

- Running E2E template tests

Author: Pijukatel

src/crawlee/project_template/{{cookiecutter.project_name}}/pyproject.toml

@@ -5,8 +5,8 @@
 # % endif
 # % if cookiecutter.http_client == 'curl-impersonate'
 # % do extras.append('curl-impersonate')
-# % elif cookiecutter.http_client == 'impit'
-# % do extras.append('impit')
+# % elif cookiecutter.http_client == 'httpx'
+# % do extras.append('httpx')
 # % endif
 
 [project]

src/crawlee/project_template/{{cookiecutter.project_name}}/requirements.txt

@@ -10,4 +10,7 @@ apify
 # % if cookiecutter.http_client == 'curl-impersonate'
 # % do extras.append('curl-impersonate')
 # % endif
+# % if cookiecutter.http_client == 'httpx'
+# % do extras.append('httpx')
+# % endif
 crawlee[{{ extras | join(',') }}]