MNT: Update fsl/fsl_sub version number

to 2.7.3 [build 0] (automatic fsl-ci-rules)

meta.yaml

@@ -3,7 +3,7 @@
 # The git repository for this conda recipe is: https://git.fmrib.ox.ac.uk/fsl/conda/fsl_sub.git
 
 {% set name       = 'fsl_sub' %}
-{% set version    = '2.7.2' %}
+{% set version    = '2.7.3' %}
 {% set repository = 'https://git.fmrib.ox.ac.uk/fsl/fsl_sub.git' %}
 {% set build      = '0' %}