Fix release workflow (open-telemetry#2306)

Author: trask

.github/scripts/update-version.sh

@@ -10,3 +10,5 @@ fi
 
 sed -Ei "s/val stableVersion = \"[^\"]*\"/val stableVersion = \"$version\"/" version.gradle.kts
 sed -Ei "s/val alphaVersion = \"[^\"]*\"/val alphaVersion = \"$alpha_version\"/" version.gradle.kts
+
+sed -Ei "1 s/(Comparing source compatibility of [a-z-]+)-[0-9]+\.[0-9]+\.[0-9]+(-SNAPSHOT)?.jar/\1-$version.jar/" docs/apidiffs/current_vs_latest/*.txt