1.4.3 breaks some injections with quotes

[lyghtnox]

Describe the bug
Version 1.4.3 surrounds the database name with quotes in some requests (count in time based postgresql injection).
This breaks some injections where the quotes aren't allowed.

To Reproduce

1. Try to dump data for this challenge on root-me with version>=1.4.3
2. See error

[WARNING] unable to retrieve the number of column(s) '...' entries for table '...' in database '...'

Expected behavior
Count of the number of columns

Running environment:

• sqlmap version >=1.4.3
• Installation method: git
• Operating system: Parrot OS

Target details:

• DBMS: PostgreSQL
• SQLi techniques found by sqlmap: PostgreSQL > 8.1 stacked queries (comment)
• Relevant console output: [WARNING] unable to retrieve the number of column(s) '...' entries for table '...' in database '...'

Additional context
Request for version <= 1.4.2:
1;SELECT (CASE WHEN (ASCII(SUBSTRING((SELECT COALESCE(CAST(id AS CHARACTER(10000)),(CHR(32))) FROM public.users ORDER BY id OFFSET 1 LIMIT 1)::text FROM 1 FOR 1))>64) THEN (SELECT 3979 FROM PG_SLEEP(5)) ELSE 3979 END)--

Request for version >= 1.4.3:
1;SELECT (CASE WHEN (ASCII(SUBSTRING((SELECT COALESCE(CAST(COUNT(*) AS VARCHAR(10000))::text,(CHR(32))) FROM "public".users)::text FROM 1 FOR 1))>51) THEN (SELECT 3658 FROM PG_SLEEP(5)) ELSE 3658 END)--

Newer versions add quotes around db name, which breaks the injection in some cases

[stamparm]

1. Your target restricts proper identifier enclosure with double quotes - this must work on PostgreSQL
2. Nevertheless, I will try to narrow down the usage of this mechanism in sqlmap, so this kind of cases could automatically work too (trivia: by using --no-escape you could turn off this mechanism manually)