Merge #1810

1810: discard metadata URL based on their hash, not URLs r=rvl a=KtorZ

# Issue Number

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#1805 

# Overview

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- [x] I have changed the SQLite filtering to discard metadata URL based on their hash, not URLs


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Co-authored-by: KtorZ <[email protected]>

lib/core/src/Cardano/Pool/DB/Sqlite.hs

@@ -273,9 +273,9 @@ newDBLayer trace fp = do
                         , "FROM", metadata
                         , ")"
                     , "AND"
-                    , metadataUrl, "NOT", "IN" -- Recently failed urls
+                    , metadataHash, "NOT", "IN" -- Recently failed urls
                         , "("
-                        , "SELECT", metadataUrl
+                        , "SELECT", metadataHash
                         , "FROM", fetchAttempts
                         , "WHERE", retryAfter, ">=", "datetime('now')"
                         , ")"