Bump Swatinem/rust-cache from 2.6.0 to 2.7.0

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.6.0 to 2.7.0.
- [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...a95ba19)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/backend_check.yml

@@ -37,7 +37,7 @@ jobs:
           override: true
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+        uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43 # v2.7.0
         with:
           workspaces: backend
 

.github/workflows/backend_docs.yml

@@ -37,7 +37,7 @@ jobs:
           override: true
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+        uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43 # v2.7.0
         with:
           workspaces: backend
 

.github/workflows/backend_tests.yml

@@ -37,7 +37,7 @@ jobs:
           override: true
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@b8a6852b4f997182bdea832df3f9e153038b5191 # v2.6.0
+        uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43 # v2.7.0
         with:
           workspaces: backend