chore: widen click dependency to >=8.1.7,<9

Relaxes the click pin from ~=8.1.7 (which caps at <8.2.0) to >=8.1.7,<9.
This allows enterprise customers with InfoSec requirements for click 8.3.x
to install CrewAI without dependency resolution failures.

Click 8.1→8.3 has no breaking changes for our CLI decorator usage.

Affected files:
- lib/crewai/pyproject.toml
- lib/cli/pyproject.toml
- lib/devtools/pyproject.toml

lib/cli/pyproject.toml

@@ -9,7 +9,7 @@ authors = [
 requires-python = ">=3.10, <3.14"
 dependencies = [
     "crewai-core==1.14.6",
-    "click~=8.1.7",
+    "click>=8.1.7,<9",
     "pydantic>=2.11.9,<2.13",
     "pydantic-settings~=2.10.1",
     "appdirs~=1.4.4",