test: move flexible checksums integration tests

[trivikr]

Issue

Refs: #6750 (review)

Description

Moves flexible checksums integration tests inside middleware-flexible-checksums

Testing

CI

Verified that integration tests are successful

$ middleware-flexible-checksums> yarn test:integration

 RUN  v0.34.6 /local/home/trivikr/workspace/aws-sdk-js-v3/packages/middleware-flexible-checksums

 ✓ src/middleware-flexible-checksums.integ.spec.ts (29)
   ✓ middleware-flexible-checksums (29)
     ✓ S3 (29)
       ✓ putObject (12)
         ✓ sets x-amz-checksum-crc32="AAAAAA=="" for checksum="CRC32"
         ✓ sets x-amz-checksum-crc32="NSRBwg=="" for checksum="CRC32"
         ✓ sets x-amz-checksum-crc32="i9aeUg=="" for checksum="CRC32"
         ✓ sets x-amz-checksum-crc32c="AAAAAA=="" for checksum="CRC32C"
         ✓ sets x-amz-checksum-crc32c="Nks/tw=="" for checksum="CRC32C"
         ✓ sets x-amz-checksum-crc32c="crUfeA=="" for checksum="CRC32C"
         ✓ sets x-amz-checksum-sha1="2jmj7l5rSw0yVb/vlWAYkK/YBwk="" for checksum="SHA1"
         ✓ sets x-amz-checksum-sha1="qZk+NkcGgWq6PiVxeFDCbJzQ2J0="" for checksum="SHA1"
         ✓ sets x-amz-checksum-sha1="e1AsOh9IyGCa4hLN+2Od7jlnP14="" for checksum="SHA1"
         ✓ sets x-amz-checksum-sha256="47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU="" for checksum="SHA256"
         ✓ sets x-amz-checksum-sha256="ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0="" for checksum="SHA256"
         ✓ sets x-amz-checksum-sha256="ZOyIygCyaOW6GjVnihtTFtIS9PNmskdyMlNKiuyjfzw="" for checksum="SHA256"
       ✓ getObject (12)
         ✓ validates x-amz-checksum-crc32="AAAAAA=="" set for checksum="CRC32"
         ✓ validates x-amz-checksum-crc32="NSRBwg=="" set for checksum="CRC32"
         ✓ validates x-amz-checksum-crc32="i9aeUg=="" set for checksum="CRC32"
         ✓ validates x-amz-checksum-crc32c="AAAAAA=="" set for checksum="CRC32C"
         ✓ validates x-amz-checksum-crc32c="Nks/tw=="" set for checksum="CRC32C"
         ✓ validates x-amz-checksum-crc32c="crUfeA=="" set for checksum="CRC32C"
         ✓ validates x-amz-checksum-sha1="2jmj7l5rSw0yVb/vlWAYkK/YBwk="" set for checksum="SHA1"
         ✓ validates x-amz-checksum-sha1="qZk+NkcGgWq6PiVxeFDCbJzQ2J0="" set for checksum="SHA1"
         ✓ validates x-amz-checksum-sha1="e1AsOh9IyGCa4hLN+2Od7jlnP14="" set for checksum="SHA1"
         ✓ validates x-amz-checksum-sha256="47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU="" set for checksum="SHA256"
         ✓ validates x-amz-checksum-sha256="ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0="" set for checksum="SHA256"
         ✓ validates x-amz-checksum-sha256="ZOyIygCyaOW6GjVnihtTFtIS9PNmskdyMlNKiuyjfzw="" set for checksum="SHA256"
       ✓ should not set binary file content length
       ✓ features (4)
         ✓ should feature-detect checksum SHA256=Y
         ✓ should feature-detect checksum SHA1=X
         ✓ should feature-detect checksum CRC32=U
         ✓ should feature-detect checksum CRC32C=V

 Test Files  1 passed (1)
      Tests  29 passed (29)

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