Fixed FirstSetup and upgraded Alpine to 3.16 version

"FirstSetup": now installes go form official website

CT ElkarbackupALP: New use old stable repo(3.15) for php7 since is is obeleted in 3.16

CT HeimdallCT: Switched to php8 and when git cloing using 2.x branch instead of master

CT-Build/Alpine.yaml

@@ -1,6 +1,6 @@
 image:
   distribution: "alpinelinux"
-  release: "3.15"
+  release: "3.16"
 
 source:
   downloader: alpinelinux-http
@@ -540,23 +540,23 @@ packages:
 #PKGS for Elkarbackup
   - packages:
     - rsnapshot
-    - php7
-    - php7-openssl
-    - php7-phar
-    - php7-mbstring
-    - php7-iconv
-    - php7-json
-    - php7-ctype
-    - php7-xml
-    - php7-tokenizer
-    - php7-dom
-    - php7-session
-    - php7-simplexml
-    - php7-posix
-    - php7-fpm
-    - php7-pdo_mysql
-    - php7-pcntl
-    - php7-fileinfo
+    - php7@CommunityOldStable
+    - php7-openssl@CommunityOldStable
+    - php7-phar@CommunityOldStable
+    - php7-mbstring@CommunityOldStable
+    - php7-iconv@CommunityOldStable
+    - php7-json@CommunityOldStable
+    - php7-ctype@CommunityOldStable
+    - php7-xml@CommunityOldStable
+    - php7-tokenizer@CommunityOldStable
+    - php7-dom@CommunityOldStable
+    - php7-session@CommunityOldStable
+    - php7-simplexml@CommunityOldStable
+    - php7-posix@CommunityOldStable
+    - php7-fpm@CommunityOldStable
+    - php7-pdo_mysql@CommunityOldStable
+    - php7-pcntl@CommunityOldStable
+    - php7-fileinfo@CommunityOldStable
     - coreutils
     - sudo
     action: install
@@ -566,6 +566,19 @@ packages:
 #PKGS for Heimdall
   - packages:
     - git
+    - php8
+    - php8-ctype
+    - php8-curl
+    - php8-pdo_sqlite
+    - php8-mbstring
+    - php8-json
+    - php8-zip
+    - php8-xml
+    - php8-fpm
+    - php8-session
+    - php8-openssl
+    - php8-tokenizer
+
     action: install
     variants:
     - heimdall 
@@ -586,7 +599,7 @@ packages:
       #EndREPOS
       {% if image.variant == "ddns" %}@TestingEdge http://dl-4.alpinelinux.org/alpine/edge/testing{% endif %}
       {% if image.variant == "vouchproxy" %}@CommunityEdge http://dl-4.alpinelinux.org/alpine/edge/community{% endif %}
-
+      {% if image.variant == "elkarbackupALP" %}@CommunityOldStable http://dl-4.alpinelinux.org/alpine/v3.15/community{% endif %}
 
 actions:
 - trigger: post-unpack