[ALCA-DB] Various fixes/improvements for unit test

[smuzaffar]

Updated unit tests so that they can be run from their own separate directory. Mostly

• convert <bin ...> to <test....>
• use full path e.g CMSSW_BASE/src/... instead of ./src/

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40971/34471

• This PR adds an extra 16KB to repository

[cmsbuild]

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

It involves the following packages:

• CondFormats/Common (db, alca)

@malbouis, @yuanchao, @cmsbuild, @saumyaphor4252, @ggovi, @tvami, @ChrisMisan, @francescobrivio can you please review it and eventually sign? Thanks.
@mmusich, @tocheng, @seemasharmafnal this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

[smuzaffar]

please test

[mmusich]

the name of commit 1cfa9e1 does not belong here (it should actually be in #40972 )

(it should be remove unused test file testDropboxMetadataDB.cpp instead)

[smuzaffar]

thanks @mmusich , I will update it

[smuzaffar]

something went wrong, let me open a new PR

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-40971/34478

• This PR adds an extra 12KB to repository

[cmsbuild]

Pull request #40971 was updated. @malbouis, @yuanchao, @bbilin, @cmsbuild, @AdrianoDee, @srimanob, @saumyaphor4252, @kskovpen, @ggovi, @sunilUIET, @tvami, @ChrisMisan, @francescobrivio can you please check and sign again.