use buildLogAnalyzer.py as RPM source

[smuzaffar]

in 53x and 71x, curl is not able to download this source due to SSL issue

+ curl -L -k -o /data/cmsbld/x/w/slc6_amd64_gcc472/cms/cmssw/CMSSW_5_3_X_2021-01-17-2300/buildLogAnalyzer.py https://raw.githubusercontent.com/cms-sw/cms-bot/master/buildLogAnalyzer.py
% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (35) Unknown SSL protocol error in connection to raw.githubusercontent.com:443
error: Bad exit status from /data/cmsbld/x/w/tmp/rpm-tmp.pKfNdB (%build)

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_11_3_X/master.

@cmsbuild, @smuzaffar, @mrodozov can you please review it and eventually sign? Thanks.
cms-bot commands are listed here