Update tensorflow and macOS / CI (#166)

* Update tensorflow and macOS / CI

* Update Linux tensorflow version

* Update Linux tensorflow version back

* Update Linux tensorflow to 2.18

* Update Linux URL

Author: ekrich

.github/workflows/ci.yml

@@ -10,8 +10,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, macos-13]
-        java: [ '17' ]
+        os: [ubuntu-22.04, macos-14]
+        java: [ '17', '21' ]
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout current branch (full)
@@ -26,7 +26,7 @@ jobs:
     - name: Setup (Linux)
       if: startsWith(matrix.os, 'ubuntu')
       run: |
-        curl -fsSL https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-linux-x86_64-2.15.0.tar.gz \
+        curl -fsSL https://storage.googleapis.com/tensorflow/versions/2.18.0/libtensorflow-cpu-linux-x86_64.tar.gz \
           -o ~/libtensorflow.tar.gz
         mkdir -p ~/tensorflow && tar -xzf ~/libtensorflow.tar.gz -C ~/tensorflow
     - name: Setup (macOS)

stensorflow/src/test/scala/org/ekrich/tensorflow/unsafe/TensorflowTest.scala

@@ -13,7 +13,7 @@ import org.ekrich.tensorflow.unsafe.tensorflowEnums._
 
 class TensorflowTest {
 
-  val tfMinVersion = "2.15"
+  val tfMinVersion = "2.18"
 
   // major, minor
   case class Version(major: Int, minor: Int) extends Ordered[Version] {
@@ -42,7 +42,7 @@ class TensorflowTest {
       val swVersion = version(tfVersion)
       val minVersion = version(tfMinVersion)
       assertTrue(
-        s"Looking for version: $tfMinVersion",
+        s"Version: $minVersion, not <=  $swVersion",
         minVersion <= swVersion
       )
     }