metric: record prepare execute fail as "Failed Query OPM" in monitor (#22596)
metric: record prepare execute fail as "Failed Query OPM" in monitor (#22596)

Signed-off-by: lysu <456460f9c62282f2a0fbdf1594101f151916955e@gmail.com>
kyle-wang/tidb,pingcap/tidb,c4pt0r/tidb,c4pt0r/tidb,kyle-wang/tidb,pingcap/tidb,ngaut/tidb,coocood/tidb,ngaut/tidb,kyle-wang/tidb,kyle-wang/tidb,pingcap/tidb,kyle-wang/tidb,c4pt0r/tidb,coocood/tidb,ngaut/tidb,ngaut/tidb,c4pt0r/tidb,ngaut/tidb,kyle-wang/tidb,c4pt0r/tidb,pingcap/tidb,pingcap/tidb,c4pt0r/tidb,pingcap/tidb,ngaut/tidb