Overview of changes in 3.48.1
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* Do not abort soup session on certificate error [!118]
* Fix few memory leaks identified by static analyzers [!129]
* Fix leak of GTask object [!135]
* Don't check for AUTH=PLAIN before attempting an authentication [!129]
* Correct unused result warning from g_string_free() [!143]
* Fix build with libxml2 2.12 [!145]
* Minor fixes for GoaEwsClient [!148]