build(deps): bump fallible-iterator from 0.2.0 to 0.3.0 (#4652)

Bumps [fallible-iterator](https://github.com/sfackler/rust-fallible-iterator) from 0.2.0 to 0.3.0.
- [Release notes](https://github.com/sfackler/rust-fallible-iterator/releases)
- [Changelog](https://github.com/sfackler/rust-fallible-iterator/blob/master/CHANGELOG.md)
- [Commits](sfackler/rust-fallible-iterator@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: fallible-iterator
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -18,7 +18,7 @@ diesel = { version = "1.4.8", features = [
 diesel-dynamic-schema = { git = "https://github.com/diesel-rs/diesel-dynamic-schema", rev = "a8ec4fb1" }
 diesel-derive-enum = { version = "1.1", features = ["postgres"] }
 diesel_migrations = "1.3.0"
-fallible-iterator = "0.2.0"
+fallible-iterator = "0.3.0"
 graph = { path = "../../graph" }
 Inflector = "0.11.3"
 lazy_static = "1.1"