bump copier

Author: branchv

README.md

@@ -6,7 +6,7 @@ A [Copier](https://github.com/copier-org/copier) template for a Python package b
 
 ## Usage
 
-> **Requires**: copier>=6.0.0a6
+> **Requires**: copier>=6.0.0a7
 
 ```sh
 copier gh:branchvincent/python-template <dest>

copier.yaml

@@ -38,16 +38,6 @@ _exclude:
   - /macros
 _skip_if_exists:
   - pyproject.toml
-_min_copier_version: 6.0.0a6
-# TODO: remove below with a7+
-_templates_suffix: .jinja
-_envops:
-  block_start_string: "{%"
-  block_end_string: "%}"
-  comment_start_string: "{#"
-  comment_end_string: "#}"
-  keep_trailing_newline: true
-  variable_start_string: "{{"
-  variable_end_string: "}}"
+_min_copier_version: 6.0.0a7
 _tasks:
   - bash postgenerate.sh