build(deps): update frontmatter-gen requirement from 0.0.2 to 0.0.3

---
updated-dependencies:
- dependency-name: frontmatter-gen
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -41,7 +41,7 @@ path = "src/lib.rs"
 [dependencies]
 # Dependencies required for building and running the project.
 comrak = "0.29"
-frontmatter-gen = "0.0.2"
+frontmatter-gen = "0.0.3"
 lazy_static = "1.5"
 mdx-gen = "0.0.1"
 minify-html = "0.15"