Changes

chore(pingcap/tidb): refactor vector search test for parallel test (#3533)

This commit refactors the `pull_vector_search_test.groovy` file to
enhance the setup process by reorganizing the caching mechanism for
binaries and test assets. The changes include moving the cache steps to
improve efficiency and adding a matrix for test scripts, allowing for
better management of test execution. Additionally, the download commands
for test assets have been updated to suppress output for cleaner logs.
 (commit: 0d51d3b)