chore! remove support for python 3.7 (#445)

as its EOL and the latest version of our dependencies (eg: setuptools,
dirty-equals, pre-commit) no longer support it

.github/workflows/ci.yml

@@ -9,11 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python 3.7
+    - name: Set up Python
       id: setup-python
       uses: actions/setup-python@v4
-      with:
-        python-version: 3.7
     - name: Cache virtualenv
       id: cache-venv
       uses: actions/cache@v3

.python-version

@@ -0,0 +1 @@
+3.8

README.md

@@ -19,7 +19,7 @@ For examples see:
 
 ## Prerequisites
 
-- python 3.7+
+- python 3.8+
 
 ## Install
 

pyproject.toml

@@ -6,7 +6,7 @@ readme = "README.md"
 license = { file = "LICENSE" }
 keywords = ["AWS", "EC2", "command line", "cli"]
 classifiers = ["License :: OSI Approved :: MIT License"]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "boto3==1.28.1",
     "importlib_resources==5.12.0",
@@ -23,7 +23,7 @@ dev = [
     "boto3-stubs[ec2,compute-optimizer,ssm,s3]",
     "cogapp~=3.3",
     "dirty-equals~=0.6",
-    "moto[ec2]~=4.1",
+    "moto[ec2]==4.2.9",
     "pre-commit~=2.20",
     "pyfakefs~=5.1",
     "pytest~=7.4",

toast.yml

@@ -1,4 +1,4 @@
-image: python:3.7-slim
+image: python:3.8-slim
 command_prefix: set -euo pipefail
 tasks:
   install-packages: