Fix string to number deserialization

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

Cargo.lock

@@ -1672,6 +1672,7 @@ dependencies = [
  "reqwest",
  "rust-bert",
  "serde",
+ "serde-aux",
  "serde_json",
  "serde_repr",
  "time",
@@ -2008,6 +2009,17 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-aux"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a86348501c129f3ad50c2f4635a01971f76974cd8a3f335988a0f1581c082765"
+dependencies = [
+ "chrono",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "serde-value"
 version = "0.7.0"