build(deps): upgrade bdk, ecdsa_fun, sigma_fun, bitcoin-harness

- bdk to 0.21.0 comit-network#1107
- ecdsa_fun to f8250a2 comit-network#1112
- sigma_fun to f8250a2 comit-network#1113
- bitcoin-harness upgrade was required, waiting for merge at coblox/bitcoin-harness-rs#25

.github/workflows/build-release-binaries.yml

@@ -14,10 +14,12 @@ jobs:
             target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
             archive_ext: tar
-          - bin: swap
-            target: armv7-unknown-linux-gnueabihf
-            os: ubuntu-latest
-            archive_ext: tar
+          # armv7 compilation broke until this goes in
+          # https://github.com/LLFourn/elliptic-curves/pull/1
+          # - bin: swap
+          #   target: armv7-unknown-linux-gnueabihf
+          #   os: ubuntu-latest
+          #   archive_ext: tar
           - bin: swap
             target: x86_64-apple-darwin
             os: macos-latest
@@ -30,10 +32,10 @@ jobs:
             target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
             archive_ext: tar
-          - bin: asb
-            target: armv7-unknown-linux-gnueabihf
-            os: ubuntu-latest
-            archive_ext: tar
+          # - bin: asb
+          #   target: armv7-unknown-linux-gnueabihf
+          #   os: ubuntu-latest
+          #   archive_ext: tar
           - bin: asb
             target: x86_64-apple-darwin
             os: macos-latest

.github/workflows/ci.yml

@@ -32,8 +32,10 @@ jobs:
         include:
           - target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
-          - target: armv7-unknown-linux-gnueabihf
-            os: ubuntu-latest
+          # armv7 compilation broke until this goes in
+          # https://github.com/LLFourn/elliptic-curves/pull/1
+          # - target: armv7-unknown-linux-gnueabihf
+          #   os: ubuntu-latest
           - target: x86_64-apple-darwin
             os: macos-latest
           - target: x86_64-pc-windows-msvc