Update embedded-nal requirement from 0.4.0 to 0.6.0

[dependabot]

Updates the requirements on embedded-nal to permit the latest version.

Changelog

Sourced from embedded-nal's changelog.

[0.6.0] - 2021-05-25

• Changed self references in dns stack methods to mutable, to follow the network stack implementations.

[0.5.0] - 2021-05-20

Changed

• Bump dependency version of heapless to v0.7.0 to utilize const generics.
• Bump MSRV to 1.51.0 to get min_const_generics for heapless.

[0.4.0] - 2021-03-05

Changed

• Changed Dns methods to return nb::Result<..> to allow non-blocking implementations.
• Bump dependency version of heapless to v0.6.1 to address security issue of sub-dependency.
• Bump dependency version of no-std-net to v0.5.
• Bump MSRV to 1.46.0 to get const-fn for no-std-net.

[0.3.0] - 2021-02-15

Added

• New optional struct SharedNal that can share a single underlying implementation among several users within a thread.

Changed

• Changed the names of UdpClient/TcpClient to UdpClientStack/TcpClientStack
• Changed the names of UdpServer/TcpServer to UdpFullStack/TcpFullStack
• Changed the method names Dns::gethostbyname/Dns::gethostbyaddr to Dns::get_host_by_name/Dns::get_host_by_address
• Changed self references in all network stack methods to mutable, with the intent of handling sharing in a different layer (see #43).

[0.2.0] - 2020-12-02

Added

• Added a new UdpServer trait with server-specific methods
• Added a new TcpServer trait with server-specific methods

Changed

• Changed the UdpStack::receive method to return the packet sender address, along with the packet length
• Changed the name of UdpStack to UdpClient
• Changed name of TcpStack to TcpClient
• Changed the TcpCStack::connect() function to return an nb::Result
• Renamed open() functions to socket() for both stacks
• Renamed read() and write() functions to send() and receive() respectively
• Updated UdpStack::connect() to modify an existing socket

Removed

• Removed Mode enum, implementations should instead use nb::WouldBlock

[0.1.0] - 2020-08-26

... (truncated)

Commits

• bec2c3c Merge pull request #57 from rust-embedded-community/release/prepare-0.6.0
• 5441e6c Preparing v0.6.0 release
• f603589 Merge pull request #56 from rust-embedded-community/fix/dns-mutability
• 1d50620 Change self references in dns stack methods to mutable, to follow the network...
• f4d3726 Merge pull request #55 from rust-embedded-community/release/prepare-0.5.0
• e757223 Preparing v0.5.0 release
• 8851737 Update changelog and MSRV to 1.51
• d46f4c6 Update heapless to v0.7.0 and use const generics
• a6b1ab0 Merge pull request #51 from dnadlinger/patch-1
• 892b78f tcp: Fix small doc comment typo
• See full diff in compare view

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