Add errno.ENOTCAPABLE (#14748)

stdlib/@tests/stubtest_allowlists/darwin-py311.txt

@@ -29,3 +29,11 @@ _msi
 msilib(.[a-z]+)?
 ossaudiodev
 spwd
+
+
+# ================
+# Unclear problems
+# ================
+
+# Added in 3.11.1, flagged by stubtest on Python < 3.14 for unknown reasons
+errno.ENOTCAPABLE

stdlib/@tests/stubtest_allowlists/darwin-py312.txt

@@ -17,3 +17,11 @@ _msi
 msilib(.[a-z]+)?
 ossaudiodev
 spwd
+
+
+# ================
+# Unclear problems
+# ================
+
+# Added in 3.11.1, flagged by stubtest on Python < 3.14 for unknown reasons
+errno.ENOTCAPABLE

stdlib/@tests/stubtest_allowlists/darwin-py313.txt

@@ -3,3 +3,11 @@
 # =======
 
 (mmap.MAP_32BIT)?  # Exists locally on MacOS but not on GitHub
+
+
+# ================
+# Unclear problems
+# ================
+
+# Added in 3.11.1, flagged by stubtest on Python < 3.14 for unknown reasons
+errno.ENOTCAPABLE

stdlib/errno.pyi

@@ -121,6 +121,7 @@ if sys.platform == "darwin":
     ESHLIBVERS: Final[int]
     if sys.version_info >= (3, 11):
         EQFULL: Final[int]
+        ENOTCAPABLE: Final[int]  # available starting with 3.11.1
 
 if sys.platform != "darwin":
     EDEADLOCK: Final[int]