Drop Julia 1.0 (#544)

* drop Julia 1.0

* lts is 1.6

Co-authored-by: Miha Zgubic <mzgubic@users.noreply.github.com>

Author: mcabbott

.github/workflows/CI.yml

@@ -21,7 +21,7 @@ jobs:
       matrix:
         version:
           - "1"    # Latest Release
-          - "1.0"  # LTS
+          - "1.6"  # LTS
         os:
           - ubuntu-latest
           - macOS-latest

Project.toml

@@ -1,6 +1,6 @@
 name = "ChainRulesCore"
 uuid = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-version = "1.12.2"
+version = "1.13.0"
 
 [deps]
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
@@ -13,7 +13,7 @@ Compat = "2, 3"
 FiniteDifferences = "0.10"
 OffsetArrays = "1"
 StaticArrays = "0.11, 0.12, 1"
-julia = "1"
+julia = "1.6"
 
 [extras]
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"