Ignore case when looking for components in the component to team data

The case used in the component to team data is not consistent with the actual component names.
As a workaround, we ignore case.

Fixes #2024

bugbug/bugzilla.py

@@ -324,6 +324,8 @@ def component_to_team(
     product: str,
     component: str,
 ) -> Optional[str]:
+    component = component.lower()
+
     for team, products_data in component_team_mapping.items():
         if product not in products_data:
             continue
@@ -331,9 +333,12 @@ def component_to_team(
         product_data = products_data[product]
         if (
             product_data["all_components"]
-            or component in product_data["named_components"]
             or any(
-                component.startswith(prefix)
+                component == named_component.lower()
+                for named_component in product_data["named_components"]
+            )
+            or any(
+                component.startswith(prefix.lower())
                 for prefix in product_data["prefixed_components"]
             )
         ):

tests/test_bugzilla.py

@@ -104,6 +104,13 @@ def component_team_mapping():
                 "prefixed_components": ["GFX", "Graphics"],
             }
         },
+        "Javascript": {
+            "Core": {
+                "all_components": False,
+                "named_components": ["js-ctypes"],
+                "prefixed_components": ["Javascript"],
+            }
+        },
     }
 
 
@@ -151,3 +158,8 @@ def test_component_to_team(component_team_mapping: dict) -> None:
         bugzilla.component_to_team(component_team_mapping, "Core", "Graphics: OK")
         == "GFX"
     )
+
+    assert (
+        bugzilla.component_to_team(component_team_mapping, "Core", "JavaScript Engine")
+        == "Javascript"
+    )