fix(cli): install local deps in editable mode (#6294)

**Description** 

As part of this PR #6156, local deps are no longer installed in editable
mode. This change reverts that behaviour and ensures local packages are
installed in editable mode.

**Issue:** fixes #6288

libs/cli/langgraph_cli/__init__.py

@@ -1 +1 @@
-__version__ = "0.4.3"
+__version__ = "0.4.4"

libs/cli/langgraph_cli/config.py

@@ -1434,7 +1434,7 @@ ADD {relpath} /deps/{name}
             echo "Installing $dep"; \
             if [ -d "$dep" ]; then \
                 echo "Installing $dep"; \
-                (cd "$dep" && {global_reqs_pip_install} .); \
+                (cd "$dep" && {global_reqs_pip_install} -e .); \
             fi; \
         done""",
         "# -- End of local dependencies install --",