pgsql: Adjust to latest Msys2 kernel release number

Adjust to latest Msys2 kernel release number

Previously 'uname -r' on Msys2 reported a kernele release starting with
2. The latest version starts with 3. In commit 1638623f we specifically
looked for one starting with 2. This is now changed to look for any
digit between 2 and 9.

backpatch to release 10.

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/ad9b419f7cbe82ef843b74a983e7cad656d96ebf

Modified Files
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src/bin/pg_dump/t/010_dump_connstr.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)