It's not usual for schools not to send books home in the holidays. Families who intend to keep up reading are not just going to want 1 or 2 for 6 weeks, so they'd need to send about 6 home per child and that's an awful lot of books to lose if people don't bring them all back (and sadly some families are very slapdash with such things).
You can borrow phonics books from the library. Alternatively, you could buy a set like Julia Donaldson Songbirds from Amazon. It might not follow the exact scheme she does in school, but most schemes are pretty generic. There will be books in the set she can access now, some which may be too easy for her current level but are nice to boost confidence and some which you can put away for next summer.
Teach Your Monster to Read, Reading Eggs and Oxford Owl are all good apps for reading.
Personally though, I'd just enjoy books in general, rather than worry about phonics books. Join the Summer Reading Challenge at the library. Read to her daily and let her identify any of the high frequency words she's been working on in school on each page.
If school sent home any word cards last year and you still have them I'd revisit them regularly to keep them fresh in her mind (or you can easily make your own set on post it notes - words such as I, the, to, no, go, he, she etc). Play games with them, such a bingo, seek the word (a version of hide and seek where you hide the words and she seeks them and has to read them), splat (buy a fly swat at the pound shop and ask her to swat certain words on demand). Keep it fun.