Update fpdec requirement from 0.8 to 0.10

Updates the requirements on [fpdec](https://github.com/mamrhein/fpdec.rs) to permit the latest version.
- [Release notes](https://github.com/mamrhein/fpdec.rs/releases)
- [Changelog](https://github.com/mamrhein/fpdec.rs/blob/main/CHANGES.TXT)
- [Commits](https://github.com/mamrhein/fpdec.rs/compare/fpdec@0.8.0...fpdec@0.10.0)

---
updated-dependencies:
- dependency-name: fpdec
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -14,7 +14,7 @@ categories = ["data-structures", "mathematics"]
 
 [dependencies]
 qty-macros = { version = "0.12.0", path = "qty-macros" }
-fpdec = { version = "0.8", optional = true }
+fpdec = { version = "0.10", optional = true }
 serde = { version = "1", features = ["derive"], optional = true }
 
 [dev-dependencies]