drop python 3.7 support

Author: p1c2u

Diff for: .github/workflows/python-test.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
       fail-fast: false
     steps:
       - uses: actions/checkout@v2

Diff for: .travis.yml

@@ -2,7 +2,6 @@ language: python
 sudo: false
 matrix:
   include:
-  - python: 3.7
   - python: 3.8
   - python: 3.9
   - python: nightly

Diff for: pyproject.toml

@@ -51,7 +51,7 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.7.0"
+python = "^3.8.0"
 jsonschema = ">=4.0.0,<4.18.0"
 rfc3339-validator = "*" # requred by jsonschema for date-time checker
 
@@ -67,7 +67,7 @@ pytest-flake8 = "*"
 pytest-cov = "*"
 mypy = "^0.910"
 flynt = "^0.78"
-deptry = { version = "^0.11.0", python = ">=3.8" }
+deptry = "^0.11.0"
 
 [tool.poetry.group.docs.dependencies]
 sphinx = "^5.3.0"