build(deps): bump itertools from 0.14.0 to 0.15.0 in /light-curve

Bumps [itertools](https://github.com/rust-itertools/itertools) from 0.14.0 to 0.15.0.
- [Changelog](https://github.com/rust-itertools/itertools/blob/master/CHANGELOG.md)
- [Commits](rust-itertools/itertools@v0.14.0...v0.15.0)

---
updated-dependencies:
- dependency-name: itertools
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

light-curve/Cargo.lock

@@ -39,7 +39,7 @@ const_format = "0.2.35"
 conv = "0.3.3"
 enum-iterator = "2.3.0"
 enumflags2 = { version = "0.7.12", features = ["serde"] }
-itertools = "0.14.0"
+itertools = "0.15.0"
 macro_const = "0.1.0"
 # v2: mimalloc v3.3.0+ crashes when two instances coexist in the same process
 # (our .so + pyarrow's libarrow both bundle mimalloc). v2 uses a separate