i2pd: Update to 2.23.0, fix #7845 and #8088

Signed-off-by: David Yang <mmyangfl@gmail.com>

net/i2pd/files/i2pd.config

@@ -0,0 +1,15 @@
+config i2pd
+	# Set where i2pd should store its data (netDB, certificates, addresses, etc)
+	# By default we store it in RAM so no data is written to ROM.
+	# IMPORTANT!
+	# Data is consistently rewritten. DO NOT POINT IT TO INNER ROM. Flash will
+	# die.
+	option data_dir '/var/lib/i2pd'
+
+	# If you don't store i2pd data permanently, you can still choose to store only
+	# addressbook. If not, i2pd will be forced to do HTTP reseeding reseeding on
+	# every start. Storing addressbook may be useful if HTTP reseeding is not
+	# possible or blocked (by censorship).
+	# Even addressbook doesn't take up too much space, extroot is still strongly
+	# recommended to avoid flash wear-out.
+	#option addressbook_dir '/etc/i2pd/addressbook'