Change `String` to `&str` for all Rocket functions

During setting the latest commit hash for Rocket and updating all the
other crates, there were some messages regarding the usage of `String`
for the Rocket endpoint function calls. I acted upon this message and
changed all `String` types to `&str` and modified the code where needed.

This ended up in less alloc calls, and probably also a bit less memory usage.

- Updated all the crates and commit hashes
- Modified all `String` to `&str` where applicable

1 files changed, 2 insertions, 2 deletions

diff --git a/src/api/web.rs b/src/api/web.rs
index f447fb82..abe2b5b9 100644
--- a/src/api/web.rs
+++ b/src/api/web.rs
@@ -111,8 +111,8 @@ fn alive_head(_conn: DbConn) -> EmptyResult {
 }
 
 #[get("/vw_static/<filename>")]
-pub fn static_files(filename: String) -> Result<(ContentType, &'static [u8]), Error> {
-    match filename.as_ref() {
+pub fn static_files(filename: &str) -> Result<(ContentType, &'static [u8]), Error> {
+    match filename {
         "404.png" => Ok((ContentType::PNG, include_bytes!("../static/images/404.png"))),
         "mail-github.png" => Ok((ContentType::PNG, include_bytes!("../static/images/mail-github.png"))),
         "logo-gray.png" => Ok((ContentType::PNG, include_bytes!("../static/images/logo-gray.png"))),