.github: Bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

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

.github/workflows/test.yml

@@ -80,7 +80,7 @@ jobs:
     - name: checkout
       uses: actions/checkout@v4
     - name: Restore Cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         # Note: unlike the other setups, this is only grabbing the mod download
         # cache, rather than the whole mod directory, as the download cache
@@ -159,7 +159,7 @@ jobs:
         cache: false
 
     - name: Restore Cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         # Note: unlike the other setups, this is only grabbing the mod download
         # cache, rather than the whole mod directory, as the download cache
@@ -260,7 +260,7 @@ jobs:
     - name: checkout
       uses: actions/checkout@v4
     - name: Restore Cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         # Note: unlike the other setups, this is only grabbing the mod download
         # cache, rather than the whole mod directory, as the download cache
@@ -319,7 +319,7 @@ jobs:
     - name: checkout
       uses: actions/checkout@v4
     - name: Restore Cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         # Note: unlike the other setups, this is only grabbing the mod download
         # cache, rather than the whole mod directory, as the download cache
@@ -367,7 +367,7 @@ jobs:
     - name: checkout
       uses: actions/checkout@v4
     - name: Restore Cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         # Note: unlike the other setups, this is only grabbing the mod download
         # cache, rather than the whole mod directory, as the download cache