Apply changes requested in code review

Signed-off-by: Israel Blancas <[email protected]>

Author: iblancasa

.chloggen/14091-add-megeto-profiles.yaml renamed to .chloggen/14091-add-mergeto-profiles.yaml

@@ -22,4 +22,4 @@ subtext:
 # Include 'user' if the change is relevant to end users.
 # Include 'api' if there is a change to a library API.
 # Default: '[user]'
-change_logs: []
+change_logs: [api]

pdata/pprofile/profiles_merge_test.go

@@ -27,12 +27,12 @@ func TestProfilesMergeTo(t *testing.T) {
 
 func TestProfilesMergeToSelf(t *testing.T) {
 	profiles := NewProfiles()
-	profiles.Dictionary().StringTable().Append("test")
+	profiles.Dictionary().StringTable().Append("", "test")
 	profiles.ResourceProfiles().AppendEmpty()
 
 	require.NoError(t, profiles.MergeTo(profiles))
 
-	assert.Equal(t, 1, profiles.Dictionary().StringTable().Len())
+	assert.Equal(t, 2, profiles.Dictionary().StringTable().Len())
 	assert.Equal(t, 1, profiles.ResourceProfiles().Len())
 }