Bump actions/cache from 2 to 3

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](actions/cache@v2...v3)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/audit.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Cache cargo-audit
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/.crates.toml

.github/workflows/format.yml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Cache Taplo
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/.crates.toml

.github/workflows/spellcheck.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Cache cargo-spellcheck
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/.crates.toml

.github/workflows/validate.yml

@@ -51,7 +51,7 @@ jobs:
           rustup toolchain install nightly --profile minimal --component miri,rust-src --allow-downgrade
           rustup default nightly
       - name: Cache xargo
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/.crates.toml