Ticketer: improve consistency when editing

[gpotter2]

• some timezones are dropped when editing a ticket, fix that
• padding was not like on Windows when building the UPN PAC structure
• CLIENT_INFO should be the same timestamp as the outer kerberos authtime. Make sure of that when resigning, else there might be an error related to "message integrity"

[codecov]

Codecov Report

❌ Patch coverage is 90.90909% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.33%. Comparing base (fbd0956) to head (563dcb4).

Files with missing lines	Patch %	Lines
scapy/modules/ticketer.py	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5027      +/-   ##
==========================================
- Coverage   80.34%   80.33%   -0.01%     
==========================================
  Files         386      386              
  Lines       96034    96037       +3     
==========================================
+ Hits        77154    77156       +2     
- Misses      18880    18881       +1     

Files with missing lines	Coverage Δ
scapy/layers/dns.py	83.85% <ø> (ø)
scapy/layers/kerberos.py	57.56% <100.00%> (ø)
scapy/layers/ldap.py	66.66% <ø> (-0.13%)	⬇️
scapy/layers/msrpce/mspac.py	91.38% <100.00%> (+0.60%)	⬆️
scapy/layers/ntlm.py	81.57% <100.00%> (+0.19%)	⬆️
scapy/layers/smbclient.py	69.55% <100.00%> (+0.03%)	⬆️
scapy/layers/windows/erref.py	100.00% <ø> (ø)
scapy/modules/ticketer.py	46.27% <71.42%> (+0.26%)	⬆️

... and 5 files with indirect coverage changes

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