Force alr version to 1.2.1

This way we can test that version without making it default in setup-alire
action.

.github/workflows/build-crate.yml

@@ -93,6 +93,7 @@ jobs:
       uses: alire-project/setup-alire@v1
       with:
         toolchain: --disable-assistant # We want to use the external ones in this workflow
+        version: 1.2.1
 
     - name: Set up devel `alr`
       if: contains(github.base_ref, 'devel-')

.github/workflows/build-native.yml

@@ -63,6 +63,8 @@ jobs:
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
       uses: alire-project/setup-alire@v1
+      with:
+        version: 1.2.1
 
     # By default, this sets up the newest indexed native toolchain
     - name: Set up devel `alr`

.github/workflows/diff-release.yml

@@ -41,6 +41,7 @@ jobs:
       uses: alire-project/setup-alire@v1
       with:
         toolchain: --disable-assistant # We don't need the compiler
+        version: 1.2.1
 
     - name: Set up GNAT toolchain (FSF)
       if: (matrix.os == 'ubuntu-latest') && (contains(github.base_ref, 'devel-'))

.github/workflows/main.yml

@@ -13,6 +13,8 @@ jobs:
     - name: Set up stable `alr`
       if: contains(github.base_ref, 'stable-')
       uses: alire-project/setup-alire@v1
+      with:
+        version: 1.2.1
 
     - name: Set up GNAT for devel `alr`
       if: contains(github.base_ref, 'devel-')