Fix concurrency bug

[vrbanecd]

Fixed the concurrency bug - a bug where Teapot could handle only one request for a specific user when the storm-webdav was in the process of starting up. Now the incoming requests are waiting for the storm-webdav to start, then proceed as usual.

Refreshed logging messages.

[vrbanecd]

Robot Results

✅ Passed	❌ Failed	⏭️ Skipped	Total	Pass %	⏱️ Duration
32	0	0	32	100	20.142943s

Passed Tests

Name	⏱️ Duration	Suite
GET USER1	9.626 s	Teapot-Tests
GET USER2	9.543 s	Teapot-Tests
GET NO TOKEN	0.010 s	Teapot-Tests
GET INVALID TOKEN	0.043 s	Teapot-Tests
PUT REQUEST INVALID TOKEN	0.010 s	Teapot-Tests
PUT REQUEST NO TOKEN	0.011 s	Teapot-Tests
PUT REQUEST USER1	0.117 s	Teapot-Tests
PUT REQUEST USER2	0.096 s	Teapot-Tests
GET FILE USER1	0.071 s	Teapot-Tests
GET FILE USER2	0.060 s	Teapot-Tests
GET FILE NO TOKEN	0.010 s	Teapot-Tests
GET FILE INVALID TOKEN	0.010 s	Teapot-Tests
DELETE REQUEST USER1	0.040 s	Teapot-Tests
DELETE REQUEST USER2	0.040 s	Teapot-Tests
DELETE REQUEST INVALID TOKEN	0.010 s	Teapot-Tests
DELETE REQUEST NO TOKEN	0.009 s	Teapot-Tests
GET USER1 EXTRA_AREA	0.040 s	Teapot-Tests
GET USER2 EXTRA_AREA	0.041 s	Teapot-Tests
GET NO TOKEN EXTRA_AREA	0.010 s	Teapot-Tests
GET INVALID TOKEN EXTRA_AREA	0.010 s	Teapot-Tests
PUT REQUEST INVALID TOKEN EXTRA_AREA	0.009 s	Teapot-Tests
PUT REQUEST NO TOKEN EXTRA_AREA	0.009 s	Teapot-Tests
PUT REQUEST USER1 EXTRA_AREA	0.036 s	Teapot-Tests
PUT REQUEST USER2 EXTRA_AREA	0.039 s	Teapot-Tests
GET FILE USER1 EXTRA_AREA	0.052 s	Teapot-Tests
GET FILE USER2 EXTRA_AREA	0.058 s	Teapot-Tests
GET FILE NO TOKEN EXTRA_AREA	0.011 s	Teapot-Tests
GET FILE INVALID TOKEN EXTRA_AREA	0.009 s	Teapot-Tests
DELETE REQUEST USER1 EXTRA_AREA	0.056 s	Teapot-Tests
DELETE REQUEST USER2 EXTRA_AREA	0.038 s	Teapot-Tests
DELETE REQUEST INVALID TOKEN EXTRA_AREA	0.009 s	Teapot-Tests
DELETE REQUEST NO TOKEN EXTRA_AREA	0.010 s	Teapot-Tests