Add Alpine Linux 3.14

(cherry picked from commit 80f828bc37)

.gitlab-ci.yml

@@ -98,8 +98,8 @@ stages:
 
 # Alpine Linux
 
-.alpine-3.13-amd64: &alpine_3_13_amd64_image
-  image: "$CI_REGISTRY_IMAGE:alpine-3.13-amd64"
+.alpine-3.14-amd64: &alpine_3_14_amd64_image
+  image: "$CI_REGISTRY_IMAGE:alpine-3.14-amd64"
   <<: *linux_amd64
 
 # CentOS
@@ -567,27 +567,27 @@ push:docs:
     - main@isc-projects/bind9
     - /^v9_[1-9][0-9]$/@isc-projects/bind9
 
-# Jobs for regular GCC builds on Alpine Linux 3.13 (amd64)
+# Jobs for regular GCC builds on Alpine Linux 3.14 (amd64)
 
-gcc:alpine3.13:amd64:
+gcc:alpine3.14:amd64:
   variables:
     CC: gcc
     CFLAGS: "${CFLAGS_COMMON}"
-  <<: *alpine_3_13_amd64_image
+  <<: *alpine_3_14_amd64_image
   <<: *build_job
 
-system:gcc:alpine3.13:amd64:
-  <<: *alpine_3_13_amd64_image
+system:gcc:alpine3.14:amd64:
+  <<: *alpine_3_14_amd64_image
   <<: *system_test_job
   needs:
-    - job: gcc:alpine3.13:amd64
+    - job: gcc:alpine3.14:amd64
       artifacts: true
 
-unit:gcc:alpine3.13:amd64:
-  <<: *alpine_3_13_amd64_image
+unit:gcc:alpine3.14:amd64:
+  <<: *alpine_3_14_amd64_image
   <<: *unit_test_job
   needs:
-    - job: gcc:alpine3.13:amd64
+    - job: gcc:alpine3.14:amd64
       artifacts: true
 
 # Jobs for regular GCC builds on CentOS 7 (amd64)

PLATFORMS

@@ -43,7 +43,7 @@ following systems:
   * Red Hat Enterprise Linux / CentOS 7, 8
   * FreeBSD 11.4, 12.2, 13.0
   * OpenBSD 6.9
-  * Alpine Linux 3.13
+  * Alpine Linux 3.14
 
 The amd64, i386, armhf and arm64 CPU architectures are all fully
 supported.

PLATFORMS.md

@@ -51,7 +51,7 @@ following systems:
 * Red Hat Enterprise Linux / CentOS 7, 8
 * FreeBSD 11.4, 12.2, 13.0
 * OpenBSD 6.9
-* Alpine Linux 3.13
+* Alpine Linux 3.14
 
 The amd64, i386, armhf and arm64 CPU architectures are all fully supported.