Make euclid build without libm

Author: nical

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        features: ["", "--features serde", "--no-default-features --features libm"]
+        features: ["", "--features serde", "--no-default-features", "--no-default-features --features libm"]
         version: ["1.63.0", "stable", "beta", "nightly"]
         include:
           - version: stable
@@ -29,7 +29,7 @@ jobs:
             features: --features unstable
           - version: nightly
             features: --features unstable,serde
-        
+
     steps:
       - uses: actions/checkout@v4