bug: fix ctip parser handling JSON Payload content

[wagner-intevation]

Handle Payload field with non-base64-encoded JSON content and numbered dictionaries

[codecov-commenter]

Codecov Report

Merging #2193 (9a5d17f) into develop (cef39c1) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 9a5d17f differs from pull request most recent head 95d486e. Consider uploading reports for the commit 95d486e to get more accurate results

@@           Coverage Diff            @@
##           develop    #2193   +/-   ##
========================================
  Coverage    76.34%   76.35%           
========================================
  Files          441      441           
  Lines        23649    23658    +9     
  Branches      3739     3741    +2     
========================================
+ Hits         18054    18063    +9     
  Misses        4858     4858           
  Partials       737      737           

Impacted Files	Coverage Δ
...s/bots/parsers/microsoft/test_parser_ctip_azure.py	100.00% <ø> (ø)
intelmq/bots/parsers/microsoft/parser_ctip.py	87.09% <100.00%> (+0.57%)	⬆️
intelmq/bots/experts/asn_lookup/expert.py	35.20% <0.00%> (+0.52%)	⬆️
...telmq/bots/experts/recordedfuture_iprisk/expert.py	42.55% <0.00%> (+0.61%)	⬆️
intelmq/bots/experts/maxmind_geoip/expert.py	21.42% <0.00%> (+0.62%)	⬆️
intelmq/bots/experts/tor_nodes/expert.py	47.05% <0.00%> (+0.63%)	⬆️
intelmq/bots/experts/domain_suffix/expert.py	43.33% <0.00%> (+0.63%)	⬆️

[waldbauer-certat]

LGTM