Cut pre.2 prereleases (#637)

Cuts the following prerelease versions:

- `aes-gcm` v0.11.0-pre.2
- `aes-gcm-siv` v0.12.0-pre.2
- `aes-siv` v0.8.0-pre.2
- `chacha20poly1305` v0.11.0-pre.2

Cargo.toml

@@ -12,7 +12,3 @@ members = [
     "ocb3",
 ]
 resolver = "2"
-
-[patch.crates-io]
-# https://github.com/RustCrypto/stream-ciphers/pull/368
-chacha20 = { git = "https://github.com/RustCrypto/stream-ciphers.git" }

aes-gcm-siv/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "aes-gcm-siv"
-version = "0.12.0-pre.1"
+version = "0.12.0-pre.2"
 description = """
 Pure Rust implementation of the AES-GCM-SIV Misuse-Resistant Authenticated
 Encryption Cipher (RFC 8452) with optional architecture-specific

aes-gcm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "aes-gcm"
-version = "0.11.0-pre.1"
+version = "0.11.0-pre.2"
 description = """
 Pure Rust implementation of the AES-GCM (Galois/Counter Mode)
 Authenticated Encryption with Associated Data (AEAD) Cipher

aes-siv/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "aes-siv"
-version = "0.7.0"
+version = "0.8.0-pre.2"
 description = """
 Pure Rust implementation of the AES-SIV Misuse-Resistant Authenticated
 Encryption Cipher (RFC 5297) with optional architecture-specific
@@ -27,7 +27,7 @@ digest = { version = "=0.11.0-pre.9", features = ["mac"] }
 zeroize = { version = "1", default-features = false }
 
 # optional dependencies
-pmac = { version = "0.8.0-pre", optional = true }
+pmac = { version = "0.8.0-pre.2", optional = true }
 
 [dev-dependencies]
 blobby = "0.3"

chacha20poly1305/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "chacha20poly1305"
-version = "0.11.0-pre.1"
+version = "0.11.0-pre.2"
 description = """
 Pure Rust implementation of the ChaCha20Poly1305 Authenticated Encryption
 with Additional Data Cipher (RFC 8439) with optional architecture-specific
@@ -21,7 +21,7 @@ rust-version = "1.81"
 
 [dependencies]
 aead = { version = "0.6.0-rc.0", default-features = false }
-chacha20 = { version = "=0.10.0-pre.1", default-features = false, features = ["xchacha", "zeroize"] }
+chacha20 = { version = "=0.10.0-pre.2", default-features = false, features = ["xchacha", "zeroize"] }
 cipher = "=0.5.0-pre.7"
 poly1305 = "0.9.0-rc.0"
 zeroize = { version = "1.8", default-features = false }