Update CI to current practices

Author: ctrueden

.github/workflows/build.yml

@@ -15,9 +15,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           java-version: '8'
           distribution: 'zulu'

pom.xml

@@ -65,6 +65,9 @@
 		<license.licenseName>bsd_2</license.licenseName>
 		<license.projectName>SciJava Optional library for emulating named and default arguments.</license.projectName>
 		<license.copyrightOwners>SciJava developers.</license.copyrightOwners>
+
+		<!-- NB: Deploy releases to the SciJava Maven repository. -->
+		<releaseProfiles>sign,deploy-to-scijava</releaseProfiles>
 	</properties>
 
 	<developers>