Bowerfile is not effective

[hopewise]

I need to specify the git endpoint for a dependency, as:

# vendor/assets/bower_components/Bowerfile
asset "sb_admin", git: "https://github.com/BlackrockDigital_/startbootstrap-sb-admin-2.git#3.3.7+1"

however, when I run bundle exec rake bower:install CI=true the generated file seems not to use the endpoint above.

# vendor/assets/bower.json
{
  "name": "dsl-generated-dependencies",
  "dependencies": {
    "sb_admin": "git://github.com/BlackrockDigital/startbootstrap-sb-admin-2#3.3.7+1"
  },
  "resolutions": {
    "font-awesome": "~4.6.3"
  }
}

Do I miss something?
What I need is to read the repo using https instead of git://github.com/ to avoid this error:

bower sb_admin#3.3.7+1                        ECMDERR Failed to execute "git ls-remote --tags --heads git://github.com/BlackrockDigital/startbootstrap-sb-admin-2.git", exit code of #128 fatal: remote error:    The unauthenticated git protocol on port 9418 is no longer supported. Please see https://github.blog/2021-09-01-improving-git-protocol-security-github/ for more information.

here is my bower.json

{
  "name": "boweradmin",
  "lib": {
    "name": "bowerrailsgeneratedlibassets",
    "dependencies": {}
  },
  "vendor": {
    "name": "bowerrailsgeneratedvendorassets",
    "dependencies": {
      "font-awesome": "~4.6.3",
      "sb_admin": "https://github.com/BlackrockDigital/startbootstrap-sb-admin-2.git"
    },
    "resolutions": {
      "font-awesome": "~4.6.3"
    }
  },
  "description": "",
  "main": "",
  "ignore": [
    "**/.*",
    "node_modules",
    "bower_components",
    "vendor/assets/bower_components",
    "test",
    "tests"
  ],
  "dependencies": {
    "moment-timezone": "^0.5.23",
    "moment": "^2.24.0",
    "datatables-responsive": "1.0.6",
    "bootstrap-social": "~4.8.0",
    "datatables-plugins": "~1.0.1",
    "datatables.net": "^1.10.19",
    "flot.tooltip": "~0.8.4",
    "flot": "~0.8.3",
    "eve-raphael": "0.5.0",
    "holderjs": "~2.4.1",
    "metisMenu": "~1.1.3",
    "mocha": "~1.17.1",
    "sb_admin": "https://github.com/BlackrockDigital/startbootstrap-sb-admin-2.git",
    "datatables.net-bs4": "^3.2.2",
    "datatables.net-buttons": "2.0.0",
    "datatables.net-buttons-dt": "^1.7.1",
    "startbootstrap-sb-admin-2": "^4.0.7"
  },
  "resolutions": {
    "datatables.net-buttons": ">=1.0.3"
  }
}