fix: #49 allow newer version of dependencies (#57)

* fix: #49 allow newer version of dependencies, click lib had issues. fix db call.
* lockdown development dependency versions

jake/ossindex/ossindex.py

@@ -183,7 +183,7 @@ def get_purls_and_results_from_cache(self, purls: Coordinates) -> (Coordinates,
 
   def clean_cache(self):
     """removes all documents from the table"""
-    self._db.purge()
+    self._db.truncate()
     return True
 
   def close_db(self):

requirements.txt

@@ -1,29 +1,29 @@
-cachetools==4.1.0
-certifi==2020.11.8
-chardet==3.0.4
-click==7.1.2
-colorama==0.4.3
-distlib==0.3.1
-idna==2.10
-isort==5.6.4
-lazy-object-proxy==1.4.3
-lxml==4.6.3
-mccabe==0.6.1
-oyaml==0.9
-packaging==20.3
-pkginfo==1.5.0.1
-polling==0.3.1
-pyfiglet==0.8.post1
-pyparsing==2.4.7
-PyYAML==5.4.1
-requests==2.25.0
-tabulate==0.8.7
-termcolor==1.1.0
-terminaltables==3.1.0
-tinydb==3.15.2
-toml==0.10.2
-typed-ast==1.4.1
-urllib3==1.26.4
-wimpy==0.6
-wrapt==1.12.1
-yaspin==0.16.0
+cachetools>=4.1.0
+certifi>=2020.11.8
+chardet>=3.0.4
+click>=7.1.2,<8.0.0
+colorama>=0.4.3
+distlib>=0.3.1
+idna>=2.10
+isort>=5.6.4
+lazy-object-proxy>=1.4.3
+lxml>=4.6.3
+mccabe>=0.6.1
+oyaml>=0.9
+packaging>=20.3
+pkginfo>=1.5.0.1
+polling>=0.3.1
+pyfiglet>=0.8.post1
+pyparsing>=2.4.7
+PyYAML>=5.4.1
+requests>=2.25.0
+tabulate>=0.8.7
+termcolor>=1.1.0
+terminaltables>=3.1.0
+tinydb>=3.15.2
+toml>=0.10.2
+typed-ast>=1.4.1
+urllib3>=1.26.4
+wimpy>=0.6
+wrapt>=1.12.1
+yaspin>=0.16.0