`dolt.branches.dirty` does not have boolean output

[zachmu]

This breaks some clients that do output validation.

import psycopg2                                                                                           
conn = psycopg2.connect(host="127.0.0.1", user="postgres", password="password", dbname="postgres")        
cur = conn.cursor()                                                                                       
                                                                                                          
cur.execute('SELECT dirty::text FROM dolt.branches')                                                      
print(cur.fetchall())        # [('false',)] -- the stored value is correct                                
                                                                                                          
`cur.execute('SELECT dirty FROM dolt.branches')                                                           
print(cur.fetchall())        # psycopg2.InterfaceError: can't parse boolean: '0'                          

psycopg2.InterfaceError: can't parse boolean: '0'                                                         

[itdependsnetworks]

I can't re-produce this on 1.2.0, perhaps fixed by #3127 ?

[itdependsnetworks]

okay, but these still fail

import psycopg2

conn = psycopg2.connect(host="127.0.0.1", user="postgres", password="password", dbname="postgres")
conn.autocommit = True
cur = conn.cursor()

queries = [
    "SELECT dirty FROM dolt.branches",
    "SELECT dirty FROM dolt.branches LIMIT 1",
    "SELECT dirty FROM dolt.branches WHERE true",
    "SELECT dirty FROM dolt.branches WHERE name = 'main'",
    "SELECT dirty FROM dolt.branches WHERE dirty = false",
    "SELECT dirty FROM dolt.branches ORDER BY name",
]

for sql in queries:
    try:
        cur.execute(sql)
        print(f"ok    {str(cur.fetchall()):26} {sql}")
    except psycopg2.InterfaceError as exc:
        print(f"FAIL  {str(exc):26} {sql}")

ok    [(False,), (True,)]        SELECT dirty FROM dolt.branches
ok    [(False,)]                 SELECT dirty FROM dolt.branches LIMIT 1
ok    [(False,), (True,)]        SELECT dirty FROM dolt.branches WHERE true
FAIL  can't parse boolean: '1'   SELECT dirty FROM dolt.branches WHERE name = 'main'
FAIL  can't parse boolean: '0'   SELECT dirty FROM dolt.branches WHERE dirty = false
FAIL  can't parse boolean: '0'   SELECT dirty FROM dolt.branches ORDER BY name