chore(deps): update actions/cache action to v5

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/blockchain.yml

@@ -57,7 +57,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -389,7 +389,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -438,7 +438,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -487,7 +487,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -535,7 +535,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -583,7 +583,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -631,7 +631,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -679,7 +679,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}
@@ -727,7 +727,7 @@ jobs:
       run: echo "MONOREPO_COMMIT_ID=${{ hashFiles('./geth/monorepo_commit') }}" >> $GITHUB_ENV
     - name: Restore celo-monorepo cache
       id: celo-monorepo-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: celo-monorepo
         key: celo-monorepo-cache-${{ env.MONOREPO_COMMIT_ID }}-${{ env.CHECKOUT_MONOREPO_CACHE_VERSION }}