Update imapengine dependancies too

libs/vendor/guzzlehttp/psr7/docs/diagnostic-values.md

@@ -0,0 +1,30 @@
+# Diagnostic Values
+
+## `GuzzleHttp\Psr7\DiagnosticValue::escape`
+
+`public static function escape(string $value): string`
+
+Escapes C0, DEL, and C1 controls as uppercase `\xNN` sequences.
+
+ASCII bytes from 0x20 through 0x7E and valid UTF-8 characters outside those
+control ranges remain unchanged. If the input is malformed UTF-8 or PCRE cannot
+process it, every byte outside printable ASCII is escaped. Valid C1 characters
+are rendered as `\xNN` using their Unicode code points. During bytewise
+fallback, each original byte outside printable ASCII is rendered in the same
+form. The result is diagnostic text, not a reversible encoding.
+
+This does not encode values for HTML, JSON, shells, terminals, URLs, or protocol
+fields.
+
+Use this helper when including an untrusted value in diagnostic text:
+
+```php
+use GuzzleHttp\Psr7\DiagnosticValue;
+
+$value = "bad\nvalue";
+$message = sprintf('Invalid value: %s', DiagnosticValue::escape($value));
+// Invalid value: bad\x0Avalue
+```
+
+Applications must still encode the completed diagnostic for its final output
+context, such as HTML or JSON.