[chore][pdata/xpdata] run make modernize (#14159)

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#### Description

Run the `make modernize` tool.

https://pkg.go.dev/golang.org/x/tools/gopls/internal/analysis/modernize

This is part of the process to enable the
[modernize](#14153)
linter in CI.

There are no changes in the component behaviour.

Signed-off-by: Paulo Dias <[email protected]>

Author: paulojmdias

pdata/xpdata/entity/entity_map_test.go

@@ -48,7 +48,7 @@ func TestEntityMap_PutEmpty_Override(t *testing.T) {
 func TestEntityMap_EnsureCapacity(t *testing.T) {
 	em := NewEntityMap()
 	em.EnsureCapacity(5)
-	for i := 0; i < 5; i++ {
+	for i := range 5 {
 		em.PutEmpty(fmt.Sprintf("type%d", i))
 	}
 	assert.Equal(t, 5, em.Len())