chore(deps): update alpine docker tag to v3.21.0

Author: renovate[bot]

.circleci/config.yml

@@ -94,7 +94,7 @@ jobs:
 
   build-alpine:
     docker:
-      - image: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+      - image: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
 
     working_directory: ~/repo
 
@@ -147,7 +147,7 @@ jobs:
 
   test-alpine:
     docker:
-      - image: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+      - image: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     steps:
       - run:
           name: Install git
@@ -184,7 +184,7 @@ jobs:
 
   test-alpine-proxy:
     docker:
-      - image: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+      - image: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     steps:
       - run:
           name: Install git
@@ -219,7 +219,7 @@ jobs:
 
   test-alpine-without-git:
     docker:
-      - image: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+      - image: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     steps:
       - run:
           name: Install git

.github/workflows/test-and-deploy.yml

@@ -73,7 +73,7 @@ jobs:
 
   build-alpine:
     runs-on: ubuntu-latest
-    container: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+    container: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     needs: build-linux-and-macos-x64
     steps:
       - name: Checkout
@@ -330,7 +330,7 @@ jobs:
 
   test-alpine:
     runs-on: ubuntu-latest
-    container: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+    container: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     needs: build-alpine
     steps:
       - name: Install git
@@ -364,7 +364,7 @@ jobs:
 
   test-alpine-without-git:
     runs-on: ubuntu-latest
-    container: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+    container: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     needs: build-alpine
     steps:
       - name: Install git
@@ -400,7 +400,7 @@ jobs:
 
   test-alpine-proxy:
     runs-on: ubuntu-latest
-    container: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+    container: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     needs: build-alpine
     steps:
       - name: Install git