Refresh UpdateSdkManTest fixtures after SDKMAN CSV update (#1073)

The 2026-04-27 auto-update of sdkman-java.csv removed several
patch versions that the test fixtures hard-coded:

- 17.0.18-tem → only 17.0.19-tem now ships
- 11.0.30-amzn → only 11.0.31-amzn now ships
- 23.0.1-open and 23.0.2-amzn → no Java 23 entries remain

Update the three failing tests to use versions present in the
current CSV, choosing pairs that still demonstrate the same
recipe behavior.

Author: steve-aom-elliott

src/test/java/org/openrewrite/java/migrate/UpdateSdkManTest.java

@@ -30,13 +30,13 @@ class UpdateSdkManTest implements RewriteTest {
     @Test
     void updateVersionExact() {
         rewriteRun(
-          spec -> spec.recipe(new UpdateSdkMan("17.0.18", null)),
+          spec -> spec.recipe(new UpdateSdkMan("17.0.19", null)),
           text(
             """
               java=11.1.2-tem
               """,
             """
-              java=17.0.18-tem
+              java=17.0.19-tem
               """,
             spec -> spec.path(".sdkmanrc")
           )
@@ -63,10 +63,10 @@ void updateDistributionOnly() {
           spec -> spec.recipe(new UpdateSdkMan(null, "amzn")),
           text(
             """
-              java=11.0.30-tem
+              java=11.0.31-zulu
               """,
             """
-              java=11.0.30-amzn
+              java=11.0.31-amzn
               """,
             spec -> spec.path(".sdkmanrc")
           )
@@ -186,13 +186,13 @@ void upgradeIfNewVersionIsStillSameVersionBasisAndSameDistribution() {
     @Test
     void upgradeIfNewVersionIsStillSameVersionBasisAndDifferentDistribution() {
         rewriteRun(
-          spec -> spec.recipe(new UpdateSdkMan("23", "amzn")),
+          spec -> spec.recipe(new UpdateSdkMan("21", "tem")),
           text(
             """
-              java=23.0.1-open
+              java=21.0.10-jbr
               """,
             """
-              java=23.0.2-amzn
+              java=21.0.11-tem
               """,
             spec -> spec.path(".sdkmanrc")
           )