Update toxfile

Wrap long lines to improve readability
Update safety command to use --json flag instead of --bare flag
Update security env to skip package install

tox.ini

@@ -14,7 +14,10 @@ locked_deps =
     pytest-cov
     toml
 commands =
-    pytest --cov {toxinidir}/tox_poetry_installer --cov-config {toxinidir}/.coveragerc --cov-report term-missing {toxinidir}/tests/
+    pytest {toxinidir}/tests/ \
+      --cov {toxinidir}/tox_poetry_installer \
+      --cov-config {toxinidir}/.coveragerc \
+      --cov-report term-missing
 
 [testenv:static]
 description = Static formatting and quality enforcement
@@ -32,9 +35,13 @@ locked_deps =
     pre-commit-hooks
     pylint
 commands =
-    pre-commit run --all-files
-    pylint --rcfile {toxinidir}/.pylintrc {toxinidir}/tox_poetry_installer/
-    mypy --ignore-missing-imports --no-strict-optional {toxinidir}/tox_poetry_installer/
+    pre-commit run \
+      --all-files
+    pylint {toxinidir}/tox_poetry_installer/ \
+      --rcfile {toxinidir}/.pylintrc
+    mypy {toxinidir}/tox_poetry_installer/ \
+      --ignore-missing-imports \
+      --no-strict-optional
 
 [testenv:static-tests]
 description = Static formatting and quality enforcement for the tests
@@ -46,20 +53,35 @@ locked_deps =
     pytest
     mypy
 commands =
-    pylint --rcfile {toxinidir}/.pylintrc {toxinidir}/tests/
-    mypy --ignore-missing-imports --no-strict-optional {toxinidir}/tests/
+    pylint {toxinidir}/tests/ \
+      --rcfile {toxinidir}/.pylintrc
+    mypy {toxinidir}/tests/ \
+      --ignore-missing-imports \
+      --no-strict-optional
 
 [testenv:security]
 description = Security checks
 basepython = python3.8
 platform = linux
 ignore_errors = true
+skip_install = true
 locked_deps =
     bandit
     safety
     poetry
 commands =
-    bandit --recursive --quiet {toxinidir}/tox_poetry_installer/
-    bandit --recursive --quiet --skip B101 {toxinidir}/tests/
-    poetry export --format requirements.txt --output {envtmpdir}/requirements.txt --without-hashes --dev
-    safety check --bare --file {envtmpdir}/requirements.txt
+    bandit {toxinidir}/tox_poetry_installer/ \
+      --recursive \
+      --quiet
+    bandit {toxinidir}/tests/ \
+      --recursive \
+      --quiet \
+      --skip B101
+    poetry export \
+      --format requirements.txt \
+      --output {envtmpdir}/requirements.txt \
+      --without-hashes \
+      --dev
+    safety check \
+      --file {envtmpdir}/requirements.txt \
+      --json