Make django-storages optional

Dockerfile

 FROM python:3.9-buster AS core
 
 # Build arguments
-ARG EXTRAS="ldap"
+ARG EXTRAS="ldap,s3"
 ARG APP_VERSION=""
 
 # Configure Python to be nice inside Docker and pip to stfu

poetry.lock

@@ -216,7 +216,7 @@ name = "boto3"
 version = "1.17.33"
 description = "The AWS SDK for Python"
 category = "main"
-optional = false
+optional = true
 python-versions = ">= 2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [package.dependencies]
@@ -229,7 +229,7 @@ name = "botocore"
 version = "1.20.33"
 description = "Low-level, data-driven core of boto 3."
 category = "main"
-optional = false
+optional = true
 python-versions = ">= 2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [package.dependencies]
@@ -1006,7 +1006,7 @@ name = "django-storages"
 version = "1.11.1"
 description = "Support for many storage backends in Django"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=3.5"
 
 [package.dependencies]
@@ -1481,7 +1481,7 @@ name = "jmespath"
 version = "0.10.0"
 description = "JSON Matching Expressions"
 category = "main"
-optional = false
+optional = true
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
@@ -2062,7 +2062,7 @@ name = "s3transfer"
 version = "0.3.6"
 description = "An Amazon S3 Transfer Manager"
 category = "main"
-optional = false
+optional = true
 python-versions = "*"
 
 [package.dependencies]
@@ -2479,11 +2479,12 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 
 [extras]
 ldap = ["django-auth-ldap"]
+s3 = ["boto3", "django-storages"]
 
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "0cae74fc2064e062810767bbbdee875dc77207456cce7c8cead89c89a0ed7ac1"
+content-hash = "fdb29a69283c1a951aba974e6b1121bdb2b002b5815df3b93d9cae89fe520f67"
 
 [metadata.files]
 alabaster = [

pyproject.toml

@@ -97,11 +97,12 @@ django-uwsgi-ng = "^1.1.0"
 django-extensions = "^3.1.1"
 ipython = "^7.20.0"
 django-redis = "^4.12.1"
-django-storages = "^1.11.1"
-boto3 = "^1.17.33"
+django-storages = {version = "^1.11.1", optional = true}
+boto3 = {version = "^1.17.33", optional = true}
 
 [tool.poetry.extras]
 ldap = ["django-auth-ldap"]
+s3 = ["boto3", "django-storages"]
 
 [tool.poetry.dev-dependencies]
 aleksis-builddeps = "*"