Introduce pyupgrade

Closes #1742 (closed)

Introducing pyupgrade.

Again, I've made one commit per rule.

ruff.toml

@@ -25,28 +25,8 @@ select = [
     "RET",
     # eradicate
     "ERA",
-    # useless-object-inheritance
-    "UP004",
-    # unnecessary-encode-utf8
-    "UP012",
-    # convert-named-tuple-functional-to-class
-    "UP014",
-    # redundant-open-modes
-    "UP015",
-    # os-error-alias
-    "UP024",
-    # unpacked-list-comprehension
-    "UP027",
-    # format-literals
-    "UP030",
-    # printf-string-formatting
-    "UP031",
-    # f-string
-    "UP032",
-    # extraneous-parentheses
-    "UP034",
-    # unnecessary-class-parentheses
-    "UP039",
+    # pyupgrade
+    "UP",
 ]
 ignore = ["E501", "RET502", "RET503"]