fix: first round of fixes in CSRs Test Cases
- remove timestamp property (from a wrong example in C.3)
- only replace id at the root of test samples (what is actually needed, avoids breaking entities infos in CSRs)
- remove a duplicate sample CSR payload
- 037_01: fix expectation in 037_01 (only one CSR is expected)
- O37_04: add type when querying since only id is not allowed