chore: generate pyshark's encap-type and filter-name maps from a util script

pcapkit/toolkit/pyshark.py

@@ -145,7 +145,7 @@
     108: Enum_LinkType.MOST,                       # most
     109: Enum_LinkType.CAN20B,                     # can20b
     111: Enum_LinkType.X2E_SERIAL,                 # x2e-serial
-    112: Enum_LinkType.IPMB_LINUX,                 # i2c-linux
+    112: Enum_LinkType.I2C_LINUX,                  # i2c-linux
     113: Enum_LinkType.IEEE802_15_4_NONASK_PHY,    # wpan-nonask-phy
     115: Enum_LinkType.USB_LINUX_MMAPPED,          # usb-linux-mmap
     121: Enum_LinkType.FC_2,                       # fc2

tests/_dependency_gates.py

@@ -237,6 +237,17 @@
         'asks whether /proc/self/fd is a directory, i.e. whether this kernel '
         'exposes the procfs file-descriptor listing -- nothing pip installs'
     ),
+    # tests/project/test_pyshark_encap_map.py (#851/#853). Asks whether the
+    # tshark/editcap binaries are on PATH -- a Wireshark install, not a Python
+    # distribution any pyproject.toml extra could ever provide. Declared here
+    # rather than left as an unprefixed shutil.which check: the latter was
+    # tried first and made the AST scan blind to two classes skipping on every
+    # CI leg, which is the opposite of what "no unaccounted HAS_* gate" was
+    # meant to prevent.
+    'HAS_WIRESHARK': (
+        'asks whether the tshark/editcap binaries are on PATH -- a Wireshark '
+        'install, not a Python distribution any extra could provide'
+    ),
 }
 
 #: Top-level import names two (or more) genuinely *mutually exclusive*