Fix: Update column name from TIME to DATE

[omariqbalnaru]

Problem

The PSX website changed the date column name from "TIME" to "DATE", causing the library to fail with the error:
"None of ['TIME'] are in the columns"

Solution

Updated all references from "TIME" to "DATE":

• Updated headers list (line 20)
• Updated column check in toframe() method (line 81)
• Updated set_index() call (line 85)

Testing

Tested successfully with multiple PSX stocks (GTYR, GAL, PAEL, PSO, PPL, SNGP, GHNI, PIOC, GLAXO, CPHL, LOTCHEM, MARI, ENGROH, EFERT, SHFA, CRTM, SLGL, FCEPL, DGKC, BIPL).

All stocks fetched successfully with the updated code.

Impact

This fixes the broken library and makes it work with the current PSX website structure (as of October 2025).

Changes Made

# Before
headers = ['TIME', 'OPEN', 'HIGH', 'LOW', 'CLOSE', 'VOLUME']
if key == "TIME":
    value = datetime.strptime(value, "%b %d, %Y")
return pd.DataFrame(stocks, columns=self.headers).set_index("TIME")

# After  
headers = ['DATE', 'OPEN', 'HIGH', 'LOW', 'CLOSE', 'VOLUME']
if key == "DATE":
    value = datetime.strptime(value, "%b %d, %Y")
return pd.DataFrame(stocks, columns=self.headers).set_index("DATE")

[ameerusman]

@omariqbalnaru Issue has been fixed in the main (the latest release 0.7 does not have it fixed).