chore(java): update dependencies in java requirements file (#1695)

[gcf-owl-bot[bot]]

• chore(java): update gcp-releasetool and cryptography in java requirements file Source-Link: https://github.com/googleapis/synthtool/commit/74d0956884c1bb9dc901b52de35ca2bca025a74e Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:142286d973c7b6d58186070f203b50058a20a7d7b42147996db24921a18da1b0

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