Update l10n for 1.21.x release (Chromium 89).

[mkarolin]

Download the latest l10n from Transifex.

Test plan:
Per prior @kjozwiak's instructions (#10735 (comment)):

@brave/legacy_qa should run through a few locals just to make sure that nothing obvious has regressed. Shouldn't spend too much time on this though.

[kjozwiak]

Moving this into the 1.21.x milestone and labeling as release/blocking so we make sure we get new translations before releasing.

[btlechowski]

Related issues:
#14368
#14177
#14163
#14144

[srirambv]

Verification passed on OnePlus 6T with Android 10 running 1.21.71

• Verified no major issues found in translation

---

Verification passed on Samsung Tab A with Android 10 running 1.21.71

• Verified no major issues found in translation

---

Verification passed on

Brave | 1.21.71 Chromium: 89.0.4389.72 (Build officiel) (64 bits)
-- | --
Révision | 3f345f156bfd157bd1bea06310e55f3fb2490359-refs/branch-heads/4389@{#1393}
Système d'exploitation | Windows 10 OS Version 2004 (Build 19041.804)

• Verified various pages like Brave Rewards, Settings, Sync, Privacy and Security, brave://settings/content and NTP and ensured that content of each page is translated in Kannada, Germany and France locales
• Logged I have sync code button alignment issue is certain locales #14435

---

Verification passed on

Brave	1.21.71 Chromium: 89.0.4389.72 (Official Build) (64-bit)
Revision	3f345f156bfd157bd1bea06310e55f3fb2490359-refs/branch-heads/4389@{#1393}
OS	Ubuntu 18.04 LTS

• Verified various pages like Brave Rewards, Settings, Sync, Privacy and Security, brave://settings/content and NTP and ensured that content of each page is translated in Polish locale

---

Verified passed with

Brave | 1.21.71 Chromium: 89.0.4389.72 (Official Build) （x86_64）
-- | --
変更履歴 | 3f345f156bfd157bd1bea06310e55f3fb2490359-refs/branch-heads/4389@{#1393}
OS | macOS バージョン10.15.7（ビルド19H512）

Verified various pages like Brave Rewards, Settings, Sync, Privacy and Security, brave://settings/content and NTP and ensured that content of each page is translated in Spanish (Spain) and Japanese (Japan) locales.

Encountered #14435