Remove PHP 7.4 (#133)

PHP 7.4 is End of life and no longer supported and is therfor beeing removed
https://www.php.net/supported-versions.php

Author: Luke-Roy-IBM

.github/workflows/ci.yaml

@@ -88,8 +88,6 @@ jobs:
         working-directory: runtime
         run: |
           SHORT_COMMIT=$(git rev-parse --short "$GITHUB_SHA")
-          ./gradlew :core:php7.4Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly
-          ./gradlew :core:php7.4Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=$SHORT_COMMIT
           ./gradlew :core:php8.0Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly
           ./gradlew :core:php8.0Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=$SHORT_COMMIT
           ./gradlew :core:php8.1Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly

README.md

@@ -23,7 +23,7 @@
 
 ## PHP versions
 
-This runtime provides PHP 8.1, 8.0 and 7.4.
+This runtime provides PHP 8.1, 8.0
 
 ### Give it a try today
 To use as a docker action
@@ -38,11 +38,6 @@ PHP 8.0:
 wsk action update myAction myAction.php --docker openwhisk/action-php-v8.0:latest
 ```
 
-PHP 7.4:
-```
-wsk action update myAction myAction.php --docker openwhisk/action-php-v7.4:latest
-```
-
 This works on any deployment of Apache OpenWhisk
 
 ### To use on deployment that contains the runtime as a kind
@@ -58,19 +53,14 @@ PHP 8.0:
 wsk action update myAction myAction.php --kind php:8.0
 ```
 
-PHP 7.4:
-```
-wsk action update myAction myAction.php --kind php:7.4
-```
 
 ### Local development
 
 ```
 ./gradlew core:php8.1Action:distDocker
 ./gradlew core:php8.0Action:distDocker
-./gradlew core:php7.4Action:distDocker
 ```
-This will produce the images `whisk/action-php-v8.1`, `whisk/action-php-v8.0` and `whisk/action-php-v7.4` respectively.
+This will produce the images `whisk/action-php-v8.1` and `whisk/action-php-v8.0` respectively.
 
 Build and Push image
 ```
@@ -79,7 +69,7 @@ docker login
 ./gradlew core:php7.4Action:distDocker -PdockerImagePrefix=$prefix-user -PdockerRegistry=docker.io
 ```
 
-Deploy OpenWhisk using ansible environment that contains the kinds `php:8.1`, `php:8.0` and `php:7.4`
+Deploy OpenWhisk using ansible environment that contains the kinds `php:8.1` and `php:8.0`
 Assuming you have OpenWhisk already deploy locally and `OPENWHISK_HOME` pointing to root directory of OpenWhisk core repository.
 
 Set `ROOTDIR` to the root directory of this repository.
@@ -110,10 +100,6 @@ docker push $user_prefix/action-php-v8.1
 docker tag whisk/php8.0Action $user_prefix/action-php-v8.0
 docker push $user_prefix/action-php-v8.0
 ```
-```
-docker tag whisk/php7.4Action $user_prefix/action-php-v7.4
-docker push $user_prefix/action-php-v7.4
-```
 
 Then create the action using your image from dockerhub
 ```