Cleanup.

.github/workflows/ci.cue

@@ -1,7 +1,9 @@
 let OTP_Versions = {
 	latest: [24.0]
-	all: [18.3, 19.3, 20.3, 21.3, 22.3, 23.3, 24.0]
+	// Older versions than 22.3 use Debian stretch, and it only has libsodium 0.18
-	test: [20.3, 21.3]
+	// In turn, we can't compile for the newer libsodium functions on this image,
+	// and it fails. Hence these versions.
+	all: [22.3, 23.3, 24.0]
 }
 
 name: "build"
@@ -18,8 +20,8 @@ jobs: ci: {
 	"runs-on": "${{matrix.os}}"
 	container: image: "erlang:${{matrix.otp_vsn}}"
 	strategy: matrix: {
-		otp_vsn: OTP_Versions.test
+		otp_vsn: OTP_Versions.all
-		os: ["ubuntu-latest"]
+		// os: ["ubuntu-latest"] // This is somewhat of a lie.
 	}
 	steps: [
 		{uses: "actions/checkout@v2"},

.github/workflows/ci.yaml

@@ -15,10 +15,9 @@ jobs:
     strategy:
       matrix:
         otp_vsn:
-        - 20.3
+        - 22.3
-        - 21.3
+        - 23.3
-        os:
+        - 24.0
-        - ubuntu-latest
     steps:
     - uses: actions/checkout@v2
     - name: Update apt-get database