drop julia compat to 1.6

Author: Riarrieta

.github/workflows/CI.yml

@@ -10,7 +10,8 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.7'
+          - '1.6'
+          - '1'
         os:
           - ubuntu-latest
         arch:

Project.toml

@@ -1,8 +1,7 @@
 name = "WavePropBase"
 uuid = "91c5bd54-65f5-4719-ae3b-9579edfc4a0b"
 authors = ["Luiz M. Faria <maltezfaria@gmail.com> and contributors"]
-version = "0.1.4"
-
+version = "0.1.5"
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
@@ -19,4 +18,4 @@ OrderedCollections = "1"
 RecipesBase = "1.1"
 Requires = "1"
 StaticArrays = "1.2"
-julia = "1.7"
+julia = "1.6"