fix: correct _dd.p.ksr ordering in OT x-datadog-tags expectations

The PTagsCodec headerValue method outputs tags in order: dm, tid, ksr.
The test datadogTags list had ksr before tid, causing a comparison
failure. Reorder to match the actual output: dm, tid, ksr.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bm1549

dd-trace-ot/src/ot31CompatibilityTest/groovy/OT31ApiTest.groovy

@@ -101,8 +101,8 @@ class OT31ApiTest extends DDSpecification {
     def effectiveSamplingMechanism = contextPriority == UNSET ? AGENT_RATE : samplingMechanism
     def expectedTracestate = "dd=s:${propagatedPriority};p:${DDSpanId.toHexStringPadded(spanId)}" +
       (propagatedPriority > 0 ? ";t.dm:-" + effectiveSamplingMechanism : "") +
-      (contextPriority == UNSET ? ";t.ksr:1" : "") +
-      ";t.tid:${traceId.toHexStringPadded(32).substring(0, 16)}"
+      ";t.tid:${traceId.toHexStringPadded(32).substring(0, 16)}" +
+      (contextPriority == UNSET ? ";t.ksr:1" : "")
     def expectedTextMap = [
       "x-datadog-trace-id"         : context.toTraceId(),
       "x-datadog-parent-id"        : context.toSpanId(),
@@ -114,12 +114,12 @@ class OT31ApiTest extends DDSpecification {
     if (propagatedPriority > 0) {
       datadogTags << "_dd.p.dm=-$effectiveSamplingMechanism"
     }
-    if (contextPriority == UNSET) {
-      datadogTags << "_dd.p.ksr=1"
-    }
     if (traceId.toHighOrderLong() != 0) {
       datadogTags << "_dd.p.tid=" + LongStringUtils.toHexStringPadded(traceId.toHighOrderLong(), 16)
     }
+    if (contextPriority == UNSET) {
+      datadogTags << "_dd.p.ksr=1"
+    }
     if (!datadogTags.empty) {
       expectedTextMap.put("x-datadog-tags", datadogTags.join(','))
     }

dd-trace-ot/src/ot33CompatibilityTest/groovy/OT33ApiTest.groovy

@@ -90,8 +90,8 @@ class OT33ApiTest extends DDSpecification {
     def effectiveSamplingMechanism = contextPriority == UNSET ? AGENT_RATE : samplingMechanism
     def expectedTracestate = "dd=s:${propagatedPriority};p:${DDSpanId.toHexStringPadded(spanId)}" +
       (propagatedPriority > 0 ? ";t.dm:-" + effectiveSamplingMechanism : "") +
-      (contextPriority == UNSET ? ";t.ksr:1" : "") +
-      ";t.tid:${traceId.toHexStringPadded(32).substring(0, 16)}"
+      ";t.tid:${traceId.toHexStringPadded(32).substring(0, 16)}" +
+      (contextPriority == UNSET ? ";t.ksr:1" : "")
     def expectedTextMap = [
       "x-datadog-trace-id"         : context.toTraceId(),
       "x-datadog-parent-id"        : context.toSpanId(),
@@ -103,12 +103,12 @@ class OT33ApiTest extends DDSpecification {
     if (propagatedPriority > 0) {
       datadogTags << "_dd.p.dm=-$effectiveSamplingMechanism"
     }
-    if (contextPriority == UNSET) {
-      datadogTags << "_dd.p.ksr=1"
-    }
     if (traceId.toHighOrderLong() != 0) {
       datadogTags << "_dd.p.tid=" + LongStringUtils.toHexStringPadded(traceId.toHighOrderLong(), 16)
     }
+    if (contextPriority == UNSET) {
+      datadogTags << "_dd.p.ksr=1"
+    }
     if (!datadogTags.empty) {
       expectedTextMap.put("x-datadog-tags", datadogTags.join(','))
     }