feat: Add crewai install CLI command (#1203)

* feat: Add crewai install CLI command

* feat: Add crewai install to the docs and force now crewai run

src/crewai/cli/install_crew.py

@@ -0,0 +1,21 @@
+import subprocess
+
+import click
+
+
+def install_crew() -> None:
+    """
+    Install the crew by running the Poetry command to lock and install.
+    """
+    try:
+        subprocess.run(["poetry", "lock"], check=True, capture_output=False, text=True)
+        subprocess.run(
+            ["poetry", "install"], check=True, capture_output=False, text=True
+        )
+
+    except subprocess.CalledProcessError as e:
+        click.echo(f"An error occurred while running the crew: {e}", err=True)
+        click.echo(e.output, err=True)
+
+    except Exception as e:
+        click.echo(f"An unexpected error occurred: {e}", err=True)