feat: Add Bangla language support for Bangladeshi holidays

lang/bangladesh/bn/holidays.json

@@ -0,0 +1,10 @@
+{
+    "International Mother Language Day": "আন্তর্জাতিক মাতৃভাষা দিবস",
+    "Birthday of Sheikh Mujibur Rahman": "শেখ মুজিবুর রহমানের জন্মদিন",
+    "Independence Day": "স্বাধীনতা দিবস",
+    "Bengali New Year": "বাংলা নববর্ষ",
+    "May Day": "মে দিবস",
+    "National Mourning Day": "জাতীয় শোক দিবস",
+    "Victory Day": "বিজয় দিবস",
+    "Christmas Day": "বড়দিন"
+}

lang/bangladesh/en/holidays.json

@@ -0,0 +1,10 @@
+{
+    "International Mother Language Day": "International Mother Language Day",
+    "Birthday of Sheikh Mujibur Rahman": "Birthday of Sheikh Mujibur Rahman",
+    "Independence Day": "Independence Day",
+    "Bengali New Year": "Bengali New Year",
+    "May Day": "May Day",
+    "National Mourning Day": "National Mourning Day",
+    "Victory Day": "Victory Day",
+    "Christmas Day": "Christmas Day"
+}

tests/.pest/snapshots/Countries/BangladeshTest/it_can_calculate_bangladesh_holidays_in_Bangla.snap

@@ -0,0 +1,34 @@
+[
+    {
+        "name": "\u0986\u09a8\u09cd\u09a4\u09b0\u09cd\u099c\u09be\u09a4\u09bf\u0995 \u09ae\u09be\u09a4\u09c3\u09ad\u09be\u09b7\u09be \u09a6\u09bf\u09ac\u09b8",
+        "date": "2024-02-21"
+    },
+    {
+        "name": "\u09b6\u09c7\u0996 \u09ae\u09c1\u099c\u09bf\u09ac\u09c1\u09b0 \u09b0\u09b9\u09ae\u09be\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09ae\u09a6\u09bf\u09a8",
+        "date": "2024-03-17"
+    },
+    {
+        "name": "\u09b8\u09cd\u09ac\u09be\u09a7\u09c0\u09a8\u09a4\u09be \u09a6\u09bf\u09ac\u09b8",
+        "date": "2024-03-26"
+    },
+    {
+        "name": "\u09ac\u09be\u0982\u09b2\u09be \u09a8\u09ac\u09ac\u09b0\u09cd\u09b7",
+        "date": "2024-04-14"
+    },
+    {
+        "name": "\u09ae\u09c7 \u09a6\u09bf\u09ac\u09b8",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "\u099c\u09be\u09a4\u09c0\u09af\u09bc \u09b6\u09cb\u0995 \u09a6\u09bf\u09ac\u09b8",
+        "date": "2024-08-15"
+    },
+    {
+        "name": "\u09ac\u09bf\u099c\u09af\u09bc \u09a6\u09bf\u09ac\u09b8",
+        "date": "2024-12-16"
+    },
+    {
+        "name": "\u09ac\u09a1\u09bc\u09a6\u09bf\u09a8",
+        "date": "2024-12-25"
+    }
+]

tests/.pest/snapshots/Countries/BangladeshTest/it_can_calculate_bangladesh_holidays_in_English.snap

@@ -0,0 +1,34 @@
+[
+    {
+        "name": "International Mother Language Day",
+        "date": "2024-02-21"
+    },
+    {
+        "name": "Birthday of Sheikh Mujibur Rahman",
+        "date": "2024-03-17"
+    },
+    {
+        "name": "Independence Day",
+        "date": "2024-03-26"
+    },
+    {
+        "name": "Bengali New Year",
+        "date": "2024-04-14"
+    },
+    {
+        "name": "May Day",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "National Mourning Day",
+        "date": "2024-08-15"
+    },
+    {
+        "name": "Victory Day",
+        "date": "2024-12-16"
+    },
+    {
+        "name": "Christmas Day",
+        "date": "2024-12-25"
+    }
+]

tests/Countries/BangladeshTest.php

@@ -16,3 +16,27 @@
 
     expect(formatDates($holidays))->toMatchSnapshot();
 });
+
+it('can calculate bangladesh holidays in English', function () {
+    CarbonImmutable::setTestNow('2024-01-01');
+
+    $holidays = Holidays::for(country: 'bd', locale: 'en')->get();
+
+    expect($holidays)
+        ->toBeArray()
+        ->not()->toBeEmpty();
+
+    expect(formatDates($holidays))->toMatchSnapshot();
+});
+
+it('can calculate bangladesh holidays in Bangla', function () {
+    CarbonImmutable::setTestNow('2024-01-01');
+
+    $holidays = Holidays::for(country: 'bd', locale: 'bn')->get();
+
+    expect($holidays)
+        ->toBeArray()
+        ->not()->toBeEmpty();
+
+    expect(formatDates($holidays))->toMatchSnapshot();
+});