Github action pass a json variable to a custom GitHub Action

I have to pass a json that is read from a json file, to a github action I created, this action takes the text at the moment and simply prints it as seen in the js code above.

The problem is that I can’t pass the json as a variable.

Can you give me a hand?

Json:

[
    {
      "repository": "https://github.com/zed-industries/zed",
      "commit": "fb3ef0d140156511e4880d689a01ae60f5b89fcf"
    },
    {
      "repository": "https://github.com/gdamore/tree-sitter-d",
      "commit": "750dde90ed9cdbd82493bc28478d8ab1976b0e9f"
    },
    {
      "repository": "https://github.com/CodeEditApp/CodeEdit",
      "commit": "051a83737415c71b9d7d0eb9dda751d5232940e6"
    },
    {
      "repository": "https://github.com/zed-industries/zeds",
      "commit": "051a83737415c71b9d7d0eb9dda751d5232940e6"
    }
  ]

Js code of the private repo that is called:

import { getInput, setFailed } from "@actions/core";

    const list = getInput("list");
    console.log("typeof", typeof list);
    console.log("list", list);
    console.log("length", list.length);

---

Github action:

on:
  workflow_dispatch
name: Check commit
jobs:
  run:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Read repository
        id: read_repo
        run: echo "branchs=$(echo ${cat repository.json})" >> $GITHUB_OUTPUT

      - name: Check repository
        uses: nameRepoPrivate/check_commit@main
        with:
          list: "${{ steps.read_repo.outputs.branchs }}"

Github action result:

typeof string
list 
length 0

---

other way

on:
  workflow_dispatch
name: Check commit
jobs:
  run:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Read repository
        id: read_repo
        run: |
          echo "branchs=$(cat repository.json)" >> $GITHUB_ENV
          echo "::set-output name=branchs::$(cat repository.json)"

      - name: Check repository
        uses: nameRepoPrivate/check_commit@main
        with:
          list: ${{ steps.read_repo.outputs.branchs }}

Github action result:

Warning: The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

..... 

Error: Unable to process file command 'env' successfully.
Error: Invalid format '    {'
...