Update to firearms longest_length for .380 ACP and .32 caliber handguns

Update to longest_length for:
MAC-11: 253 mm
Ruger LCP: 145 mm
Skorpion 61: 1116 mm from PR CleverRaven#40484
SIG Sauer P230: 194 mm
Walther PPK: 173 mm
Kel-Tec P32: 147 mm
  Length: 129.5 mm
  Width: 19 mm
  Volume: 138 mL
  Mass: 186 g (unloaded)

data/json/items/gun/32.json

@@ -8,6 +8,7 @@
     "description": "The SIG Sauer P230 is a small, semi-automatic handgun chambered in .32 ACP.  Due to its small dimensions, it was often carried as a backup weapon.",
     "weight": "460 g",
     "volume": "312 ml",
+    "longest_length": "194 mm",
     "price": 43000,
     "price_postapoc": 1000,
     "to_hit": -1,
@@ -46,6 +47,7 @@
     "description": "The Skorpion Vz. 61 is a Czechoslovak submachine gun from the 1950s, chambered in .32 ACP.",
     "weight": "1300 g",
     "volume": "788 ml",
+    "longest_length": "1116 mm",
     "price": 150000,
     "price_postapoc": 2500,
     "to_hit": -2,
@@ -86,6 +88,7 @@
     "description": "One of the most famous handguns of the 20th century.  Your name is not Bond, but you might find this little gun still useful.",
     "weight": "540 g",
     "volume": "216 ml",
+    "longest_length": "173 mm",
     "price": 45000,
     "price_postapoc": 1250,
     "to_hit": -1,
@@ -121,8 +124,8 @@
     "type": "GUN",
     "name": { "str": "Kel-Tec P32" },
     "description": "One of Kel-tec's oldest designs, the P32 is a popular option for deep concealment and backup usage.  Despite its extreme light weight and small size, its .32 ACP chambering makes for good handling and recoil control.",
-    "weight": "198 g",
-    "volume": "132ml",
+    "weight": "186 g",
+    "volume": "138 ml",
     "price": 14000,
     "price_postapoc": 1000,
     "to_hit": -3,

data/json/items/gun/380.json

@@ -8,6 +8,7 @@
     "description": "A lesser known variant of the MAC-10, this machine pistol is chambered in .380 ACP for a smaller overall size while remaining inherently subsonic.  Smaller in almost every dimension, this inexpensive automatic weapon was declared 'fit only for combat in a phone booth' due to its low weight and absurd fire rate ranging from 1200 to 1400 rounds per minute.",
     "weight": "1590 g",
     "volume": "754 ml",
+    "longest_length": "253 mm",
     "price": 160000,
     "price_postapoc": 2500,
     "bashing": 5,
@@ -60,6 +61,7 @@
     "description": "One of the best-selling modern day 'pocket pistol's, the LCP is an affordable, polymer framed pistol chambered in .380 ACP.  Despite the round's relatively low power, the pistol's low weight and short sight radius make for a moderately poor handling pistol.",
     "weight": "267 g",
     "volume": "160 ml",
+    "longest_length": "145 mm",
     "price": 21000,
     "price_postapoc": 1250,
     "to_hit": -3,