chore(deps): upgrade dev deps and set up dependabot (#28)

Author: mcous

.github/dependabot.yml

@@ -0,0 +1,15 @@
+version: 2
+updates:
+    # GitHub Actions dependencies
+    - package-ecosystem: "github-actions"
+      directory: "/"
+      schedule:
+          interval: "weekly"
+          day: "sunday"
+
+    # Poetry dependencies
+    - package-ecosystem: "pip"
+      directory: "/"
+      schedule:
+          interval: "weekly"
+          day: "sunday"

decoy/matchers.py

@@ -233,9 +233,7 @@ def __init__(self, match: str) -> None:
 
     def __eq__(self, target: object) -> bool:
         """Return true if target is not self._reject_value."""
-        return (
-            type(target) is str and self._pattern.search(cast(str, target)) is not None
-        )
+        return isinstance(target, str) and self._pattern.search(target) is not None
 
     def __repr__(self) -> str:
         """Return a string representation of the matcher."""