Fixed CTs: gitea,nextcloud,transfersh and updated the AlpinePHPTool

CT: gitea
  Fixed broken curl command for downloading gitea

CT: nextcloud
  Forced PHP Version to 8.3 using update AlpinePHPTool

CT: transfersh
  Fixed custom theme by downloading the release tar.gz instead of cloneing the repo,
  it is now also added to the update script

Script: AlpinePHPTool
  Added ability to specify a PHP Version

.vscode/tasks.json

@@ -14,6 +14,16 @@
                 "isDefault": true
             }
         },
+      /*  {
+            "label": "BuildVM",
+            "type": "shell",
+            "command": " export XZ_DEFAULTS='-T 0'; sudo ./distrobuilder build-incus CT-Build/${input:Distro}.yaml  -o image.variant=${input:BuildVariant} --vm;sudo chown $SUDO_USER:$SUDO_USER -R *.tar.xz disk.qcow2 ;rm -f incus.tar.xz; mv -f disk.qcow2 bin/${input:Distro}-${input:BuildVariant}.qcow2",
+            "problemMatcher": [],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },*/
         {
             "label": "SetupImgBuilder",
             "type": "shell",