fix: copyright statement

spec/src/main/asciidoc/license-efsl.adoc

diff --git a/spec/src/main/asciidoc/license-efsl.adoc b/spec/src/main/asciidoc/license-efsl.adoc
index 7af216c..b5e1385 100644
--- a/spec/src/main/asciidoc/license-efsl.adoc
+++ b/spec/src/main/asciidoc/license-efsl.adoc
@@ -14,7 +14,7 @@
 Release: {revdate}
 ....
 
-Copyright (c) 2019 Eclipse Foundation.
+Copyright (c) 2019, 2026 Contributors to the Eclipse Foundation
 
 == Eclipse Foundation Specification License - v2.0