Bump Swatinem/rust-cache from 2.6.0 to 2.6.1 (#1119)

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@b8a6852...578b235)

---
updated-dependencies:
- dependency-name: Swatinem/rust-cache
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/nightly.yml

@@ -35,7 +35,7 @@ jobs:
           override: true
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+        uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
       - name: Cargo test
         uses: actions-rs/cargo@v1.0.3

.github/workflows/rust.yml

@@ -47,7 +47,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Install cargo-hack
               uses: baptiste0928/cargo-install@v2
@@ -99,7 +99,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             # Check WASM examples, which aren't a part of the workspace and so are otherwise missed:
             - name: Cargo check WASM examples
@@ -122,7 +122,7 @@ jobs:
                   components: rustfmt
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Cargo fmt
               uses: actions-rs/cargo@v1.0.3
@@ -153,7 +153,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Check internal documentation links
               run: RUSTDOCFLAGS="--deny rustdoc::broken_intra_doc_links" cargo doc -vv --workspace --no-deps --document-private-items
@@ -187,7 +187,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Install cargo-nextest
               run: cargo install cargo-nextest
@@ -222,7 +222,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Run tests
               uses: actions-rs/cargo@v1.0.3
@@ -254,7 +254,7 @@ jobs:
                   override: true
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Run clippy
               uses: actions-rs/cargo@v1
@@ -279,7 +279,7 @@ jobs:
               uses: browser-actions/setup-chrome@latest
 
             - name: Rust Cache
-              uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+              uses: Swatinem/rust-cache@578b235f6e5f613f7727f1c17bd3305b4d4d4e1f # v2.6.1
 
             - name: Download Substrate
               run: |