build(deps): bump @hashgraph/sdk from 2.69.0 to 2.75.0 in /tools/whbar-hardhat-example (#4485)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]