github-actions: bump actions/cache from 3.0.5 to 3.0.6

Bumps [actions/cache](https://github.com/actions/cache) from 3.0.5 to 3.0.6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](0865c47f36...f4278025ab)

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

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

.github/workflows/builds.yml

@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Cache ~/.cargo
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo
           key: cargo
@@ -123,7 +123,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Cache ~/.cargo
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo
           key: cbindgen
@@ -150,7 +150,7 @@ jobs:
     steps:
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -336,7 +336,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -423,7 +423,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -510,7 +510,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -948,7 +948,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -1020,7 +1020,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -1113,7 +1113,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -1176,7 +1176,7 @@ jobs:
     steps:
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry
@@ -1307,7 +1307,7 @@ jobs:
     steps:
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry

.github/workflows/commits.yml

@@ -16,7 +16,7 @@ jobs:
     container: ubuntu:20.04
     steps:
       - name: Caching ~/.cargo
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo
           key: commit-check-cargo

.github/workflows/formatting.yml

@@ -25,7 +25,7 @@ jobs:
 
       # Cache Rust stuff.
       - name: Cache cargo registry
-        uses: actions/cache@0865c47f36e68161719c5b124609996bb5c40129
+        uses: actions/cache@f4278025ab0f432ce369118909e46deec636f50c
         with:
           path: ~/.cargo/registry
           key: cargo-registry