chore: bump to release version 1.7.3

DESCRIPTION

 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.7.2
-Date: 2023-04-07
+Version: 1.7.3
+Date: 2023-04-11
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),

NEWS.md

@@ -2,11 +2,13 @@
 
 
 
-### 1.7.2 Release Notes (2023-04-07)
+### 1.7.3 Release Notes (2023-04-11)
 
 #### CRAN-compatibility updates
 
-- The 'Rmalschains' package is no longer suggested (but the code linked to its use and is always present in the 'param_optim' vignette).
+- The 'Rmalschains' package is no longer suggested (but the code linked to its use and is always present in the 'param_optim' vignette). ([#172](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/172))
+
+- `.ErrorCrit()` and `.FeatModels` function are no more exported. ([#173](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/173))
 
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