ci: Added cargo-deny, enabled pedantic clippy, upgraded dependencies (#18)

Also:

- Require nightly only for "build" subcommand, instead of for all
subcommands

Author: nikarh

.github/workflows/ci.yml

@@ -4,7 +4,7 @@ on:
   pull_request:
   push:
     branches:
-      - 'main'
+      - "main"
 
 env:
   RUSTFLAGS: -D warnings
@@ -44,14 +44,14 @@ jobs:
         run: cargo check --all-targets --all-features
       - name: "`cargo test`"
         run: cargo test --no-fail-fast --verbose --locked
-  clippy:
-    name: Clippy
+  analyze:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: rust-toolchain
         uses: dtolnay/rust-toolchain@stable
+      - name: "`cargo deny`"
+        uses: EmbarkStudios/cargo-deny-action@v1
       - name: "`cargo clippy`"
         run: cargo clippy --all-targets --all-features
-