chore(deps): Update openssl to 0.10.55 for RUSTSEC-2023-0044 fix

[rhysd]

This PR fixes the vulnerability RUSTSEC-2023-0044 in openssl crate.

This is the report from cargo audit:

Crate:         openssl
Version:       0.10.52
Title:         `openssl` `X509VerifyParamRef::set_host` buffer over-read
Date:          2023-06-20
ID:            RUSTSEC-2023-0044
URL:           https://rustsec.org/advisories/RUSTSEC-2023-0044
Solution:      Upgrade to >=0.10.55
Dependency tree:
openssl 0.10.52
└── native-tls 0.2.11
    ├── ureq 2.6.2
    │   └── nu-command 0.78.0
    │       ├── nu-cli 0.78.0
    │       │   └── clap_complete_nushell 4.3.1
    │       └── clap_complete_nushell 4.3.1
    └── nu-command 0.78.0

[epage]

@rhysd I'm curious why this vulnerability mattered. The lock file should only affect clap and clap isn't distributed in a way where vulnerabilities matter.

[rhysd]

@epage While I was reading sources of clap_complete_nushell to integrate it to my tool, my text editor warned the vuln. Yes, this change doesn't affect users, but I thought security of development environment. If it doesn't matter for you, please feel free to close this PR without merge.