Essential primary packages to requirements.txt (#255)

* Added only essential primary packages to requirements.txt in order to alleviate dependabot warnings.

* Updated astropy to 5.3.3

backend/requirements.txt

@@ -1,14 +1,6 @@
-asgiref==3.5.2
-astropy==5.1
-attrs==21.4.0
-certifi==2022.5.18.1
-cffi==1.15.0
-charset-normalizer==2.0.12
+astropy==5.3.3
 coverage==6.5.0
-cryptography==37.0.2
-defusedxml==0.7.1
-Deprecated==1.2.13
-Django==4.0.2
+Django==4.1.10
 django-cors-headers==3.11.0
 django-filebrowser-no-grappelli==4.0.1
 django-filter==21.1
@@ -17,50 +9,19 @@ django-shibboleth-remoteuser==0.12
 djangorestframework==3.13.1
 drf-social-oauth2==1.2.1
 drf-spectacular==0.22.0
-ecdsa==0.17.0
-exceptiongroup==1.0.1
-factory-boy==3.2.1
-Faker==15.1.1
-gunicorn==20.1.0
+gunicorn==22.0.0
 h5py==3.7.0
-idna==3.3
-inflection==0.5.1
-iniconfig==1.1.1
-jsonschema==4.6.0
-jwcrypto==1.3.1
-numexpr==2.8.3
 numpy==1.22.4
-oauthlib==3.2.0
-packaging==21.3
-pandas==1.4.2
-pluggy==1.0.0
 psycopg2-binary==2.9.3
-pyarrow==9.0.0
-pyasn1==0.4.8
-pycparser==2.21
-pyerfa==2.0.0.1
+pyarrow==16.0.0
 PyJWT==2.4.0
-pyparsing==3.0.9
-pyrsistent==0.18.1
 pytest==7.2.0
 pytest-cov==4.0.0
 pytest-django==4.5.2
-python-dateutil==2.8.2
-python-jose==3.3.0
-python3-openid==3.2.0
-pytz==2022.1
 PyYAML==6.0
 requests==2.28.0
 requests-oauthlib==1.3.1
-rsa==4.8
-six==1.16.0
 social-auth-app-django==5.0.0
 social-auth-core==4.3.0
-sqlparse==0.4.2
-tables==3.7.0
 tables-io==0.7.9
-tomli==2.0.1
-uritemplate==4.1.1
-urllib3==1.26.9
 uWSGI==2.0.21
-wrapt==1.14.1