stick to OTP 26 (the same as ELP) (#59)

Summary:
the same as WhatsApp/erlang-language-platform#38

Pull Request resolved: #59

Test Plan: Testing: https://github.com/ilya-klyuchnikov/eqwalizer/tree/otp-26 CI is green

Reviewed By: jcpetruzza

Differential Revision: D59750385

Pulled By: ilya-klyuchnikov

fbshipit-source-id: 304405133888e514e96c603ad4708eb3c5aa967f

Author: ilya-klyuchnikov

.github/workflows/ci.yml

@@ -4,7 +4,7 @@ jobs:
     name: Linux CI (OTP ${{matrix.otp}})
     strategy:
       matrix:
-        otp: ['26.0', '25.3']
+        otp: ['26.2']
     steps:
       - name: Checkout eqWAlizer
         uses: "actions/checkout@v3"
@@ -53,7 +53,7 @@ jobs:
       - name: Test eqwalizer
         run: 'cd eqwalizer && sbt test'
       - name: Upload eqwalizer.jar
-        if: matrix.otp == '25.3'
+        if: matrix.otp == '26.2'
         uses: "actions/upload-artifact@v3"
         with:
           name: eqwalizer.jar
@@ -65,7 +65,7 @@ jobs:
     name: MacOS CI (${{matrix.brew-otp-version}})
     strategy:
       matrix:
-        brew-otp-version: ['26', '25']
+        brew-otp-version: ['26']
     steps:
       - name: Checkout eqWAlizer
         uses: "actions/checkout@v3"

README.md

@@ -9,7 +9,7 @@ A type-checker for Erlang.
 
 ## Using it with rebar3 projects
 
-1. Use OTP 25
+1. Use OTP 26
 2. Download the `elp` binary for your system from https://github.com/WhatsApp/erlang-language-platform/releases
 
     > On Mac you will probably get the following message when trying to run the executable the first time: "elp cannot be opened because the developer cannot be verified.".
@@ -45,7 +45,7 @@ Adding `eqwalizer_support` and `eqwalizer_rebar3`:
 
 ## Using it with non-rebar projects
 
-1. Use OTP 25 (it will be detected automatically by eqWAlizer)
+1. Use OTP 26 (it will be detected automatically by eqWAlizer)
 2. Download the `elp` binary for your system from https://github.com/WhatsApp/erlang-language-platform/releases
 3. Write a `project.json` file describing your project, see below for the file structure.
 Ensure `eqwalizer_support` is added as a dependency, and that its `ebin` folder is reachable and populated