fix(nimble): ensure that constantine works in windows (#2)

* fix(nimble): ensure constantine works on windows

* fix(ci): run with nim 2.2.6 on windows, mac and linux

.github/workflows/ci.yml

@@ -4,15 +4,18 @@ on: [push, pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        nim: [2.2.4]
+        nim: [2.2.6]
+        os: [ubuntu-latest, macOS-latest, windows-latest]
     steps:
     - uses: actions/checkout@v2
-    - uses: iffy/install-nim@v5
+    - name: Install Nim
+      uses: jiro4989/setup-nim-action@v2
       with:
-        version: ${{ matrix.nim }}
+        nim-version: ${{ matrix.nim }}
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
     - name: Install dependencies
       run: nimble install -d -y
     - name: Test

groth16.nimble

@@ -8,4 +8,4 @@ binDir      = "build"
 namedBin    = {"cli/cli_main": "nim-groth16"}.toTable()
 
 requires "https://github.com/status-im/nim-taskpools"
-requires "https://github.com/mratsim/constantine >= 0.2.0"
+requires "https://github.com/durability-labs/constantine#v0.2.0-fix-nimble-windows"