chore(deps): update dependency bigdecimal to v4

Author: renovate[bot]

packaging/Gemfile

@@ -10,6 +10,6 @@ gem "webrick", "1.9.1"
 # we require gem locking for gems with native extensions
 # due to lack of windows support
 gem "json", "2.7.2"
-gem "bigdecimal", "3.1.5"
+gem "bigdecimal", "4.0.1"
 gem "fiddle", "1.1.2"
 gem "io-console", "0.7.1"

packaging/Gemfile.lock

@@ -3,7 +3,7 @@ GEM
   specs:
     awesome_print (1.9.2)
     base64 (0.3.0)
-    bigdecimal (3.1.5)
+    bigdecimal (4.0.1)
     csv (3.3.5)
     diff-lcs (1.6.2)
     dig_rb (1.0.1)
@@ -156,7 +156,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  bigdecimal (= 3.1.5)
+  bigdecimal (= 4.0.1)
   fiddle (= 1.1.2)
   io-console (= 0.7.1)
   json (= 2.7.2)