move files_versions related steps

[individual-it]

Description

move everething that relates to the files_versions app to a separate context

Related Issue

part of #33690

Motivation and Context

make WebDav.php shorter and cleaner

How Has This Been Tested?

🤖

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:

Open tasks:

• Backport (if applicable set "backport-request" label and remove when the backport was done)

[individual-it]

backport in #33790

[codecov]

Codecov Report

Merging #33789 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #33789   +/-   ##
=========================================
  Coverage     64.35%   64.35%           
  Complexity    18309    18309           
=========================================
  Files          1195     1195           
  Lines         69256    69256           
  Branches       1276     1276           
=========================================
  Hits          44567    44567           
  Misses        24317    24317           
  Partials        372      372

Flag	Coverage Δ	Complexity Δ
#javascript	52.98% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.66% <ø> (ø)	18309 <ø> (ø)	⬇️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #33789 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #33789   +/-   ##
=========================================
  Coverage     64.35%   64.35%           
  Complexity    18309    18309           
=========================================
  Files          1195     1195           
  Lines         69256    69256           
  Branches       1276     1276           
=========================================
  Hits          44567    44567           
  Misses        24317    24317           
  Partials        372      372

Flag	Coverage Δ	Complexity Δ
#javascript	52.98% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.66% <ø> (ø)	18309 <ø> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b2227ea...06a1eec. Read the comment docs.