MAINT: Added Gravelamps container images to list

Author: mick-wright

docker_images.txt

@@ -495,6 +495,9 @@ containers.ligo.org/narola.bharatbhai/tgr-docker-image/bilby_tgr:latest
 containers.ligo.org/nihar.gupte/dingo-ci/dingo:latest
 containers.ligo.org/pystamp/pystampas:latest
 containers.ligo.org/junjiezhao/tgr-ssb-docker-image/bilby_tgr:latest
+containers.ligo.org/link/pre-merger-software/gravelamps:python-3.10
+containers.ligo.org/link/pre-merger-software/gravelamps:python-3.11
+containers.ligo.org/link/pre-merger-software/gravelamps:python-3.12
 
 # LIGO/VIRGO/KAGRA containers
 containers.ligo.org/lscsoft/lalsuite/lalsuite-v6.59:el7