Update jsoncons to 1.3.2 and nlohmann-json to 3.12.0

Author: dmazzella

.github/actions/install/danielaparker-jsoncons/action.yml

@@ -4,7 +4,7 @@ inputs:
   version:
     description: The desired jsoncons version to install
     required: false
-    default: "1.3.0"
+    default: "1.3.2"
 runs:
   using: composite
   steps:

.github/actions/install/nlohmann-json/action.yml

@@ -4,7 +4,7 @@ inputs:
   version:
     description: The desired nlohmann-json version to install
     required: false
-    default: "3.11.2"
+    default: "3.12.0"
 runs:
   using: composite
   steps:

.github/workflows/traits.yml

@@ -13,9 +13,9 @@ jobs:
     strategy:
       matrix:
         target:
-          - { name: "danielaparker-jsoncons", tag: "1.3.0", version: "v1.3.0" }
+          - { name: "danielaparker-jsoncons", tag: "1.3.2", version: "v1.3.2" }
           - { name: "boost-json", tag: "1.78.0", version: "v1.80.0" }
-          - { name: "nlohmann-json", tag: "3.11.2", version: "v3.11.2" }
+          - { name: "nlohmann-json", tag: "3.12.0", version: "v3.12.0" }
           - { name: "kazuho-picojson", tag: "111c9be5188f7350c2eac9ddaedd8cca3d7bf394", version: "111c9be" }
           - { name: "open-source-parsers-jsoncpp", tag: "1.9.5", version: "v1.9.5" }
     steps: