Update dependency rust to v1.84.0 (#1376)

Author: senekor

.github/workflows/main.yml

@@ -7,7 +7,7 @@ on:
 
 env:
   # renovate: datasource=github-tags depName=rust lookupName=rust-lang/rust
-  RUST_VERSION: 1.80.0
+  RUST_VERSION: 1.84.0
 
 jobs:
   lint:

src/lib.rs

@@ -47,7 +47,7 @@ handlebars_helper!(hb_month_name_helper: |month_num: u64| match month_num {
     _ => "Error!",
 });
 
-impl<'a> Generator<'a> {
+impl Generator<'_> {
     fn new(
         out_directory: impl AsRef<Path>,
         posts_directory: impl AsRef<Path>,