Fix Firecrawl tools & adding tests (#3810)

* fix: fix Firecrawl Scrape tool

* fix: fix Firecrawl Search tool

* fix: fix Firecrawl Website tool

* tests: adding tests for Firecrawl

lib/crewai-tools/tests/tools/firecrawl_scrape_website_tool_test.py

@@ -0,0 +1,15 @@
+import pytest
+
+from crewai_tools.tools.firecrawl_scrape_website_tool.firecrawl_scrape_website_tool import (
+    FirecrawlScrapeWebsiteTool,
+)
+
+@pytest.mark.vcr(filter_headers=["authorization"])
+def test_firecrawl_scrape_tool_integration():
+    tool = FirecrawlScrapeWebsiteTool()
+    result = tool.run(url="https://firecrawl.dev")
+
+    assert result is not None
+    assert hasattr(result, 'markdown')
+    assert len(result.markdown) > 0
+    assert "Firecrawl" in result.markdown or "firecrawl" in result.markdown.lower()