chore(deps): bump serde_yaml from 0.8.26 to 0.9.4 (#13812)

* chore(deps): bump serde_yaml from 0.8.26 to 0.9.4

Bumps [serde_yaml](https://github.com/dtolnay/serde-yaml) from 0.8.26 to 0.9.4.
- [Release notes](https://github.com/dtolnay/serde-yaml/releases)
- [Commits](dtolnay/serde-yaml@0.8.26...0.9.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

* address changes in serde_yaml

* smol change to trigger CI

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

Cargo.toml

@@ -184,7 +184,7 @@ serde-toml-merge = { version = "0.3.0", default-features = false }
 serde_bytes = { version = "0.11.7", default-features = false, features = ["std"], optional = true }
 serde_json = { version = "1.0.85", default-features = false, features = ["raw_value"] }
 serde_with = { version = "2.0.0", default-features = false, features = ["macros", "std"], optional = true }
-serde_yaml = { version = "0.8.26", default-features = false }
+serde_yaml = { version = "0.9.4", default-features = false }
 
 # Messagepack
 rmp-serde = { version = "1.1.0", default-features = false, optional = true }

lib/vector-buffers/Cargo.toml

@@ -42,7 +42,7 @@ once_cell = "1.13"
 proptest = "1.0"
 quickcheck = "1.0"
 rand = "0.8.5"
-serde_yaml = { version = "0.8", default-features = false }
+serde_yaml = { version = "0.9", default-features = false }
 temp-dir = "0.1.11"
 tokio-test = "0.4.2"
 tracing-fluent-assertions = { version = "0.3" }

lib/vector-buffers/src/config.rs

@@ -389,7 +389,7 @@ mod test {
         let error = serde_yaml::from_str::<BufferConfig>(source).unwrap_err();
         assert_eq!(
             error.to_string(),
-            "unknown field `foo`, expected one of `type`, `max_events`, `max_size`, `when_full` at line 1 column 4"
+            "unknown field `foo`, expected one of `type`, `max_events`, `max_size`, `when_full`"
         );
     }
 
@@ -401,7 +401,7 @@ max_events: 42
         let error = serde_yaml::from_str::<BufferConfig>(source).unwrap_err();
         assert_eq!(
             error.to_string(),
-            "unknown field `max_size`, expected one of `type`, `max_events`, `when_full` at line 1 column 9"
+            "unknown field `max_size`, expected one of `type`, `max_events`, `when_full`"
         );
     }
 

src/config/format.rs

@@ -154,12 +154,12 @@ mod tests {
         "#;
 
         let cases = vec![
-            // Valid empty inputs should resolve to default.
+            // Valid empty inputs should resolve to an empty, default value.
             ("", Format::Toml, Ok("")),
             ("{}", Format::Yaml, Ok("")),
             ("{}", Format::Json, Ok("")),
+            ("", Format::Yaml, Ok("")),
             // Invalid "empty" inputs should resolve to an error.
-            ("", Format::Yaml, Err(vec!["EOF while parsing a value"])),
             (
                 "",
                 Format::Json,