Update actions/cache action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
                 jdk: [11, 15, 16]
         steps:
             - uses: actions/checkout@24cb9080177205b6e8c946b17badbe402adc938f # v3
-            - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+            - uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2 # v4.0.0
               with:
                 path: |
                     ~/.gradle/caches
@@ -54,7 +54,7 @@ jobs:
               with:
                   fetch-depth: '0' # https://github.com/shipkit/shipkit-changelog#fetch-depth-on-ci
 
-            - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+            - uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2 # v4.0.0
               with:
                 path: |
                   ~/.gradle/caches