Update libharu_ng version to 1.0.4 and add pdf-generation category

Author: bastibense

Cargo.lock

@@ -1,6 +1,5 @@
 [package]
-version = "1.0.3"
-
+version = "1.0.4"
 name = "libharu_ng"
 description = "Easily generate PDFs from your Rust app."
 authors = ["Bastian Bense <[email protected]>"]
@@ -13,22 +12,21 @@ categories = [
   "api-bindings",
   "pdf",
   "libharu",
+  "pdf-generation",
   "generator",
 ]
 
 edition = "2021"
 build = "build.rs"
 
 exclude = [
+  "*.code-workspace",
   ".github",
   ".gitignore",
   ".dockerignore",
-  "Dockerfile",
-  "*.code-workspace",
   ".DS_Store",
+  "Dockerfile",
 ]
 
-[dependencies]
-
 [build-dependencies]
 cmake = "0.1.50"