[IMP] web: update owl from 2.2.5 to 2.2.6

Commits:
[IMP] devtools: add svg elements detection
[FIX] reactivity: do not notify for NOOPs on collections
[IMP] app: export apps set as static property
[IMP] runtime: do not check template equality outside dev mode
[FIX] runtime: properly support t-foreach on strings

More details: https://github.com/odoo/owl/releases/tag/v2.2.6



closes odoo/odoo#136455

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>