Unbork CI on current by downgrading versions and allowing a Clippy lint (#3308)

Author: arqunis

.github/workflows/lint.yml

@@ -26,7 +26,9 @@ jobs:
         uses: Swatinem/rust-cache@v2
 
       - name: Run clippy
-        run: cargo clippy --workspace --tests --features full -- -D warnings --cfg ignore_serenity_deprecated
+        #!! Remove `-A clippy::result_large_err` once this is on `next`. This is to
+        #!! temporarily allow Clippy CI to run on `current`
+        run: cargo clippy --workspace --tests --features full -- -A clippy::result_large_err -D warnings --cfg ignore_serenity_deprecated
 
   rustfmt:
     name: Format
@@ -43,7 +45,7 @@ jobs:
 
       - name: Add problem matchers
         run: echo "::add-matcher::.github/matchers/rust.json"
-        
+
       - name: Cache
         uses: Swatinem/rust-cache@v2
 

Cargo.toml

@@ -27,6 +27,11 @@ edition = "2021"
 rust-version = "1.74"
 
 [dependencies]
+#!! Downgrade to versions still supporting v1.74.0
+#!! Make sure to remove on `next`
+litemap = "=0.7.4"
+zerofrom = "=0.1.5"
+
 # Required dependencies
 bitflags = "2.4.2"
 serde_json = "1.0.108"