Avoid to use deprecated ciphers in integration tests

[andsel]

Build scan:

Repro line:

bundle install
bundle exec rake test:integration:setup
bundle exec rspec spec --tag integration --format=documentation -e "Filebeat TLS Server verification self signed certificate with a passphrase successfully send the events"

Reproduces locally?:
Yes, on MacOS

Darwin andreas-MBP-2.station 22.6.0 Darwin Kernel Version 22.6.0: Fri Sep 15 13:41:28 PDT 2023; root:xnu-8796.141.3.700.8~1/RELEASE_ARM64_T6020 arm64

Applicable branches:

Failure history:

Failure excerpt:

Error encrypting key
80A0BFFB01000000:error:0308010C:digital envelope routines:inner_evp_generic_fetch:unsupported:crypto/evp/evp_fetch.c:341:Global default library context, Algorithm (RC2-CBC : 50), Properties ()
80A0BFFB01000000:error:11800067:PKCS12 routines:PKCS12_item_i2d_encrypt_ex:encrypt error:crypto/pkcs12/p12_decr.c:193:
80A0BFFB01000000:error:11800067:PKCS12 routines:PKCS8_set0_pbe_ex:encrypt error:crypto/pkcs12/p12_p8e.c:80:
          successfully send the events (FAILED - 1)