Update ordered-float requirement from ~2.7 to ~2.8

Updates the requirements on [ordered-float](https://github.com/reem/rust-ordered-float) to permit the latest version.
- [Release notes](https://github.com/reem/rust-ordered-float/releases)
- [Commits](https://github.com/reem/rust-ordered-float/compare/v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: ordered-float
  dependency-type: direct:production
...

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

core-traits/Cargo.toml

@@ -12,7 +12,7 @@ chrono = { version = "~0.4", features = ["serde"] }
 enum-set = "~0.0.8"
 lazy_static = "~1.4"
 indexmap = "~1.7"
-ordered-float = { version = "~2.7", features = ["serde"] }
+ordered-float = { version = "~2.8", features = ["serde"] }
 uuid = { version = "~0.8", features = ["v4", "serde"] }
 serde = { version = "~1.0", features = ["rc"] }
 serde_derive = "~1.0"

core/Cargo.toml

@@ -8,7 +8,7 @@ chrono = { version = "~0.4", features = ["serde"] }
 enum-set = "~0.0"
 failure = "~0.1"
 indexmap = "~1.7"
-ordered-float = { version = "~2.7", features = ["serde"] }
+ordered-float = { version = "~2.8", features = ["serde"] }
 uuid = { version = "~0.8", features = ["v4", "serde"] }
 
 [dependencies.core_traits]

db/Cargo.toml

@@ -14,7 +14,7 @@ indexmap = "~1.7"
 itertools = "~0.10"
 lazy_static = "~1.4"
 log = "~0.4"
-ordered-float = "~2.7"
+ordered-float = "~2.8"
 time = "~0.3"
 petgraph = "~0.6"
 serde = { version = "~1.0", optional = true }

edn/Cargo.toml

@@ -13,7 +13,7 @@ readme = "./README.md"
 chrono = "~0.4"
 itertools = "~0.10"
 num = "~0.4"
-ordered-float = "~2.7"
+ordered-float = "~2.8"
 pretty = "~0.10"
 uuid = { version = "~0.8", features = ["v4", "serde"] }
 serde = { version = "~1.0", optional = true }

sql/Cargo.toml

@@ -8,7 +8,7 @@ sqlcipher = ["rusqlite/sqlcipher"]
 
 [dependencies]
 failure = "~0.1"
-ordered-float = "~2.7"
+ordered-float = "~2.8"
 
 [dependencies.rusqlite]
 version = "~0.25"