deps: added rc_testdata and flake8

requirements_debug.txt

@@ -1,10 +1,11 b''
 ## special libraries we could extend the requirements.txt file with to add some
 ## custom libraries useful for debug and memory tracing
 
 ## uncomment inclusion of this file in requirements.txt run make generate-pkgs and nix-shell
 
 objgraph
 memory-profiler
 pympler
 ipdb
 ipython
+flake8

requirements_test.txt

@@ -1,41 +1,44 b''
 # test related requirements
 
 cov-core==1.15.0
   coverage==7.2.1
 mock==5.0.1
 py==1.11.0
 pytest-cov==4.0.0
   coverage==7.2.1
   pytest==7.2.2
     attrs==22.2.0
     iniconfig==2.0.0
     packaging==23.0
     pluggy==1.0.0
 pytest-profiling==1.7.0
   gprof2dot==2022.7.29
   pytest==7.2.2
     attrs==22.2.0
     iniconfig==2.0.0
     packaging==23.0
     pluggy==1.0.0
   six==1.16.0
 pytest-runner==6.0.0
 pytest-sugar==0.9.6
   packaging==23.0
   pytest==7.2.2
     attrs==22.2.0
     iniconfig==2.0.0
     packaging==23.0
     pluggy==1.0.0
   termcolor==2.2.0
 pytest-timeout==2.1.0
   pytest==7.2.2
     attrs==22.2.0
     iniconfig==2.0.0
     packaging==23.0
     pluggy==1.0.0
 webtest==3.0.0
   beautifulsoup4==4.11.2
     soupsieve==2.4
   waitress==2.1.2
   webob==1.8.7
+
+# RhodeCode test-data
+rc-testdata @ https://code.rhodecode.com/upstream/rc_testdata/archive/default.tar.gz?with_hash=1&sha256=76c9ed4ea955971774db2daf3076f38b7388ccc1338b6fd0c02800ab99400426