Drop PHP 8.1 support

Author: jakzal

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
             fail-fast: false
             matrix:
                 flavour: [debian, alpine]
-                php: ['8.1', '8.2', '8.3', '8.4']
+                php: ['8.2', '8.3', '8.4']
         outputs:
             push: ${{ steps.version.outputs.push }}
         steps:
@@ -170,7 +170,7 @@ jobs:
             fail-fast: false
             matrix:
                 flavour: [debian, alpine]
-                php: ['8.1', '8.2', '8.3', '8.4']
+                php: ['8.2', '8.3', '8.4']
                 platform: ['linux/arm64','linux/amd64']
                 include:
                     - platform: 'linux/arm64'

Makefile

@@ -1,4 +1,4 @@
-PHP_VERSIONS := 8.1 8.2 8.3 8.4
+PHP_VERSIONS := 8.2 8.3 8.4
 PHP_VERSION ?= $(lastword $(sort $(PHP_VERSIONS)))
 COMPOSER_AUTHDIR ?= $(shell composer config --global home)
 ifneq ("", "$(COMPOSER_AUTHDIR)")