Extend LimeSurvey 6.x support for 2 weeks

Following the manual LimeSurvey 6.x Community Edition is supported "until June, 2026", so it should be EOL for at least two days now. The official Cloud is supported "until August 31, 2026". The manual isn't trust-worthy, so it's an indication, but no definitive answer. Development hasn't stopped yet, the latest commits in the `v6.x` branch are two days old. LimeSurvey 6.x is still on the official downloads page.

Let's check again in two weeks..

Author: PhrozenByte

container.env

@@ -9,6 +9,6 @@ VERSION_PATTERN="6.*.*"
 
 # see https://www.limesurvey.org/manual/LimeSurvey_roadmap#Version_Support_Time_Frames
 ENDOFLIFE_AFTER="2026-07-01"
-ENDOFLIFE_TRESHOLD="-0 days"
+ENDOFLIFE_TRESHOLD="+14 days"
 
 BASE_IMAGE="ghcr.io/sgsgermany/php-fpm:v8.3"