Use graphql infrastructure to parse requests

[Andy2003]

Using the graphql infrastructure for parsing the request ensures that:

• the request is compliant with the schema
• internally we can rely on DataFetchingEnvironment being correctly initialized

[github-actions]

Unit Test Results

    5 files  ±0      5 suites  ±0   1m 0s ⏱️ +3s
186 tests ±0  182 ✔️ ±0  4 💤 ±0  0 ❌ ±0 
718 runs  ±0  712 ✔️ ±0  6 💤 ±0  0 ❌ ±0 

Results for commit e34613c. ± Comparison against base commit 0f81665.

This pull request removes 4 and adds 4 tests. Note that renamed tests count towards both.

sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For projection][Sort with skip limit & with other variables][Test Cypher Params]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For projection][Sort with skip limit & with other variables][Test Cypher]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For query][Sort with skip limit & with other variables][Test Cypher Params]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For query][Sort with skip limit & with other variables][Test Cypher]

sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For projection][Sort with skip limit & with other variables][Test Cypher Params]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For projection][Sort with skip limit & with other variables][Test Cypher]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For query][Sort with skip limit & with other variables][Test Cypher Params]
sort.adoc ‑ tck-test-files/cypher/sort.adoc:[Cypher pagination tests][For query][Sort with skip limit & with other variables][Test Cypher]